Research Policy 47 (2018) 498–510 Contents lists available at ScienceDirect Research Policy journal homepage: www.elsevier.com/locate/respol Customer participation and new product performance: Towards the understanding of the mechanisms and key contingencies T ⁎ Todd Morgana, , Michael Obalb, Sergey Anokhinc a Department of Management, Haworth College of Business, Western Michigan University, 600 Marion Ave., Kalamazoo, MI 49006, United States Department of Marketing, Entrepreneurship and Innovation, Manning College of Business, University of Massachusetts Lowell, 1 University Ave., Lowell, MA 01854, United States c Department of Marketing and Entrepreneurship, Kent State University, PO Box 5190, Kent, OH 44242, United States b A R T I C L E I N F O A B S T R A C T Keywords: Customer participation New product development Absorptive capacity Innovativeness Co-creation In a study of 243 firms of varying sizes across 14 different industries, we investigate the effect of customer participation on new product development performance. We confirm that overall customer participation is positively related to new product development performance and that the effect is mediated by innovativeness. We also demonstrate that these effects are contingent upon absorptive capacity of the firm in question such that firms with high absorptive capacity stand to gain more from engaging their customers in new product development than firms with low absorptive capacity, especially at the later stages of the NPD process. The results are robust to alternative estimation techniques, measures employed to operationalize key concepts, and the industrial makeup of the sample. Post hoc analyses provide non-trivial managerial implications for the decision makers at the firm level. 1. Introduction Extant research has acknowledged that to ensure new product success, customer participation in the new product development (NPD) process is essential (Chang and Taylor, 2016). In fact, the overall idea has run the gamut from a low-key, early insistence on “listening to the voice of the customer” in search of unmet customer needs and solutions (see, e.g., Griffin and Hauser, 1993), all the way to embracing customer input in all stages of the NPD process. This evolution is reflected in a plethora of concepts, such as crowdsourcing and open innovation, that have truly blossomed over the last decade (e.g., Chesbrough and Crowther, 2006; Enkel et al., 2009; Poetz and Schreier, 2012; Afuah and Tucci, 2012; Cui and Wu, 2016). Recently, customer participation itself has been considered “the extent to which the customer is involved in the manufacturer’s NPD process” (Fang et al., 2008, p. 91) thus postulating it as an integral part of the NPD sequence. Essentially, customer participation is the integration of customers into firm activities where they share needs- and solution-related inputs into the firm’s NPD processes that the firm may lack internally (Nambisan, 2002; Poetz and Schreier, 2012; Chang and Taylor, 2016). This entails customer involvement in various NPD activities such as ideation, resource inputs, knowledge exchange, and co-development (Fang, 2008; Chang and Taylor, 2016). ⁎ While many studies enthusiastically proclaim the benefits of involving customers into the NPD process to achieve greater success via reduction of costs (Auh et al., 2007), decision making improvement (Griffin and Hauser, 1993), increased complementary knowledge and resources (Coviello and Joseph, 2012), and enhanced new product innovativeness (Fang, 2008), a small number of studies suggest that there may be negative aspects to integrating customers into the NPD process. Previous research suggests that customer participation may lead to inefficient NPD processes and lower NPD performance (Chang and Taylor, 2016). Potential reasons for this may be that customers can sometimes be a limited source of innovation because they lack creative ideas (Christensen, 1997), are unable to clearly articulate latent needs (Franke et al., 2013), and increase the complexity for the focal firm trying to manage internal and external knowledge for NPD (Hoyer et al., 2010; Chang and Taylor, 2016). This research contends that customer participation’s effectiveness in regard to NPD performance and commercializing innovative new products is contingent on the absorptive capacity (ACAP) of the firm. ACAP is a dynamic capability that can help utilize the firm’s knowledge structure to acquire, transform, assimilate and exploit external knowledge and apply it to commercial ends (Zahra and George, 2002; Cohen and Levinthal, 1990; Flatten et al., 2011). Key components to enhancing the success of customer participation include the ability of the firm Corresponding author. E-mail addresses: todd.morgan@wmich.edu (T. Morgan), Michael_obal@uml.edu (M. Obal), sanokhin@kent.edu (S. Anokhin). https://doi.org/10.1016/j.respol.2018.01.005 Received 26 January 2017; Received in revised form 4 January 2018; Accepted 4 January 2018 0048-7333/ © 2018 Elsevier B.V. All rights reserved. Research Policy 47 (2018) 498–510 T. Morgan et al. Salter (2006) show that 66% of UK manufacturing firms in their sample indicated that customers and clients were a source of knowledge or information in their innovation processes (Foss et al., 2011). This tactic of integrating end users in various stages of the development process – as practiced by P&G, Unilever, and other firms both small and large – can be described as customer participation (Fang et al., 2012). Fang et al. (2008, p. 91) define customer participation as “the extent [italics added] to which the customer is involved in the manufacturer’s NPD process.” This definition aligns with the progressive user-involvement in NPD ideology (Von Hippel, 2005; Schulze and Hoegl, 2008) as opposed to the arm’s length market orientation ideology of simply “listening in” to the customer (Urban and Hauser, 2004). Customer participation in NPD is the degree to which customers and firms create new product value through ongoing interactions (Blazevic and Lievens, 2008). In contrast to market orientation, customer participation goes beyond simply collecting and disseminating information gathered from and about customers, then developing offerings around those customer needs (Atuahene-Gima and Ko, 2001). Instead, customer participation is closer to a partnership in which customers are integrated into some or all NPD activities, including product design, business evaluation, team formation, and concept screening (Fang et al., 2008). Research suggests that products generated through customer participation will more closely meet customer needs than products generated solely internally (Hoyer et al., 2010). Importantly, customer participation has been found to positively impact NPD performance across multiple NPD stages (Chang and Taylor, 2016; Troy et al., 2008). During ideation, customers are an abundant source of new product ideas (Von Hippel, 1978) since they provide first hand solutions to the actual problems they face (Yli-Renko and Janakiraman, 2008). In the development stage, customers can provide greater access to important resources and contacts (Coviello and Joseph, 2012). Customers also serve as effective testing outlets during product testing and launch stages (Griffin and Hauser, 1993). In essence, customer participation in NPD may help create products that are less easily imitable, solve customer needs, and decrease costs. Additionally, customer participation has been suggested to impact the innovativeness of new products, which we deem an important mediating factor between customer participation and NPD performance. Customers bring in external knowledge and are not susceptible to organizational inertia and oftentimes provide ‘outside-the-box’ thinking (Yli-Renko and Janakiraman, 2008), thus their ideas should be more innovative (Chang and Taylor, 2016). Conversely, employee ideas may be less innovative as they are more likely to rely on the firm’s resource base and improvement of current product lines to avoid product cannibalization (Chandy and Tellis, 1998). This is essential as highly innovative products can provide a firm with a differentiated market position that less innovative products cannot, thus enabling higher product performance (Kleinschmidt and Cooper, 1991; Rubera and Kirca, 2012). Past literature has shown that innovative products can be sold successfully based primarily on technological advantages and uniqueness from competitive offerings (Avlonitis and Salavou, 2007). Thus, we posit that product innovativeness may be a mechanism through which customer participation positively impacts product performance. When firms become overly embedded in their processes, they fail to meet changing market demands (Atuahene-Gima and Ko, 2001) that could be met by integrating customers into NPD (Coviello and Joseph, 2012). Substantively, customer co-development will lead to differentiated product attributes and increased product innovativeness, thereby enhancing NPD performance. An overview of the previous literature on the relationships between customer participation, NPD performance, and innovativeness can be seen in Table 1. As a foundation to our study, we postulate the following as baseline hypotheses: to successfully acquire external knowledge and the ability of a firm’s existing systems and capabilities to identify, assimilate and exploit external know-how (Huang and Rice, 2009; Foss et al., 2011). ACAP assists the firm in identifying more marketable external ideas, filtering through information, redefining and reclassifying problems, and using domain specific knowledge to implement new product solutions (Chandy et al., 2006; West et al., 2014; Cohen and Levinthal, 1990; Zahra and George, 2002; Robertson et al., 2012). Furthermore, ACAP assists firms in transforming ideas into more novel and usable forms that build upon current firm processes and capabilities (Cohen and Levinthal, 1994; Lane et al., 2006), thus projecting a greater fit to current and future customers. Substantively, we suggest that ACAP is a key contingency to enhance customer participation’s impact on NPD performance and innovative new products. Our principal contribution is the acknowledgment of a key contingency affecting the effectiveness of customer participation in the NPD process. Specifically, we suggest that the ability of new customers to positively affect NPD performance depends on the ACAP of the focal firm (Cohen and Levinthal, 1990). We suggest that when the focal firm has greater levels of ACAP, its ability to source valuable input from customers engaged in the NPD process is far more developed, which manifests in better performance. That is, the direct effect of customer involvement on performance should be higher when firms have a welldeveloped ACAP. In the same vein, the relationship between customer involvement and new product innovativeness should be affected by the focal firm’s ACAP. This makes ACAP a key concept in understanding the relationship (both direct and indirect) between customer participation in NPD and performance. In line with previous research, our results show that customer participation does indeed impact NPD performance directly and indirectly through new product innovativeness. In support of our principal contribution, the results also show that ACAP is a key contingency for firms seeking to enhance NPD efforts through customer participation. ACAP is shown to be a contingency for customer participation’s impact on both NPD performance, defined here as “the degree to which a new product is perceived to have achieved its market share, sales growth, customer use, and profit objectives” (Atuahene-Gima and Ko, 2001, p. 58), and new product innovativeness.1 The paper proceeds as follows. In the next section, we provide a brief overview of the customer participation literature and formulate testable hypotheses that formalize its proposed direct, mediated, and moderated effects on new product performance. This is followed by the description of our empirical strategy including data sources, measures, and methods. A section on results provides evidence in support of our hypotheses, followed by a battery of robustness checks and a separate post-hoc analysis section to provide additional insights for decision makers. The paper concludes with a discussion of our results, their implications for scholars and practitioners, identifies important limitations, and makes suggestions for future research. 2. Literature review and hypotheses development 2.1. Customer participation in new product development Researchers argue that developing new products solely with internal knowledge is no longer enough to retain or strengthen competitive positions (Joshi and Sharma, 2004). As such, the emergent open innovation approach integrates external resources and stakeholders into a firm’s innovation processes (Gassmann and Enkel, 2004). Laursen and 1 While previous customer participation literature has utilized primary data and subjective performance measures to examine relationships (see Table 1 for overview of customer participation research), we understand that primary data presents a limitation to this study in the form of potential common method bias and subjectivity in regard to performance. We discuss these issues further in the method and limitations sections of the paper. H1. Customer participation in NPD is positively related to NPD performance. H2. New product innovativeness mediates the relationship between 499 500 Survey, subjective; quantitative Survey, subjective; quantitative Survey, subjective; quantitative Experimental; subjective; quantitative Mahr et al., 2014 Bonner, 2010 Joshi and Sharma, 2004 Fuchs and Schreier, 2011 Survey, Likert scale, subjective; quantitative Carbonell et al., 2009 Interviews, survey, Likert scale, subjective; quantitative and qualitative Meta-analysis; objective; quantitative Chang and Taylor, 2016 Fang et al., 2008 Customer portfolio size (number of customer relationships), Customer relational embeddedness Longitudinal data: mail survey, telephone interviews, web searches, and archival data. Subjective and objective; quantitative and qualitative Yli-Renko and Janakiraman, 2008 Customer empowerment in NPD; perceived risk Creation of cross-functional NPD teams, failure/reward systems, integration mode of conflict resolution, and championing product leadership. Customer interactivity; customer information quality Value of customer cocreated knowledge, lead user status, closeness in customerfirm relationship Customer participation, information sharing, coordination effectiveness, and relationship specific investment Customer involvement, technical novelty, technical turbulence, innovation speed, technical quality Customer participation Customer participation as an information source; customer participation as codeveloper Survey, Likert scale, subjective; quantitative Fang, 2008 Independent Variables Customer Participation Measurement Authors Table 1 Previous research on customer participation outcomes. Failure/reward systems, integration mode of conflict resolution, Product newness; product embeddedness Communication channels Technical turbulence, emerging/ developed country, high/low tech industry, B2B/B2C, firm size There is a trade-off between NPD innovativeness and speed to market. Customer participation as an information source can improve speed to market, especially in the presence of downstream customer network connectivity. Customer participation as a codeveloper is negatively moderated by process interdependence. The impact of customer participation onto NPD performance depends on the customer portfolio size and relational embeddedness of customers into the firm. Firms develop more new products when customers are closely embedded into the firm. Customer portfolio size leads to more products, although this relationship is inverse U shaped. Customer participation in the ideation and launch stages improve NPD performance whereas customer participation in the development phase slows time to market and NPD performance. The benefits of customer participation are greater in emerging countries, low-tech industries, during technological turbulence, for business customers, and for small firms. Customer involvement in NPD leads to improved technical quality and innovation speed, which consequently impacts new product sales performance and competitive superiority. Customer involvement is more likely during technological turbulence. Customer participation in NPD influences information sharing, coordination effectiveness and relationship specific investments, which positively new product value. Customer cocreation leads to highly relevant knowledge development, thereby leading to positive NPD performance. Lead user participation leads to both relevant and novel knowledge, which positively impact market/financial performance. Participation by customers who are close to the firm is low cost and relevant, but not as novel. Customer interactivity positively influences customer information quality when developing innovative products embedded in the customer environment. This subsequently positively impacts NPD performance. Customer knowledge development has a positive impact on NPD performance. Customer knowledge development is driven by creation of crossfunctional NPD teams, failure/reward systems, integration mode of conflict resolution, and championing product leadership. Customer empowerment and interaction in the NPD process leads to improved levels of perceived customer orientation, more favorable attitudes (continued on next page) NPD Speed to Market Downstream customer network connectivity; process interdependence; process complexity Perceived customer orientation, attitudes towards the firm, purchase intentions NPD performance; customer knowledge development New product performance Market/financial success; innovation outcomes New product value New product sales performance, competitive superiority NPD Performance Number of new products developed Findings Dependent Variable Moderating Variables T. Morgan et al. Research Policy 47 (2018) 498–510 Customer Participation Measurement Survey, subjective; quantitative Survey, Likert scale, subjective; quantitative Qualitative interviews, biographic histories, and archival documents; subjective and objective. Qualitative interviews; subjective Literature review, case studies; subjective; qualitative Case study analysis; subjective; qualitative Secondary data − multiple sources; objective and subjective; quantitative Netnography (publicly available Internet posts); Ratings of coders; qualitative and quantitative Authors Ngo and O'Cass, 2013 Fang, 2008 Coviello and Joseph, 2012 Griffin and Hauser, 1993 Von Hippel, 1986 Lettl et al., 2006 Chatterji and Fabrizio, 2014 Mahr and Lievens, 2012 Table 1 (continued) Customer status as a lead user, technological eagerness of customer, and customer financial commitment Customer participation 501 Customer NPD collaborations (current and prior year), age of technological area, R&D expenditures, number of employees, accumulated knowledge stock Aspects of a lead users co-developer contribution: Focus, content, initiation, and codification Lead user characteristics: familiarity with future market needs, product use experience, driven to find solutions Lead users in customer participation: technology openness, supportive environment, intrinsic motivation Voice of the customer Downstream customer network connectivity; process interdependence; process complexity Moderating Variables Customer participation as an information source; customer participation as codeveloper Customer participation; technical innovation capability; non-technical innovation capability Independent Variables New product novelty; New product relevance; new product value NPD innovativeness (radical vs. incremental) and number of innovations Radical innovation development NPD Innovativeness: product concepts, product designs NPD Innovativeness NPD Innovativeness and performance NPD Innovativeness service quality and, subsequently, improved firm performance (sales, market share, and profitability) Dependent Variable Lead users involved in customer participation can positively impact the development of radical innovations. This is especially true for customers who are open to new technologies, are embedded in a supportive environment, and have strong intrinsic motivation. Product innovation is enhanced at the corporate level through customer participation, especially in new technological areas and when developing radical innovations. Lead users are more capable than other users of providing valuable contributions in a customer participation in NPD setting as they can suggest solutions instead of simply describing problems. Lead users can help the development of new product functionalities, but are less successful with design and usability contributions. towards the firm, and stronger intentions to purchase from the firm. Customer participation in NPD leads to improved service quality and, subsequently, improved firm performance (sales, market share, and profitability). Customer participation is driven by both technical and non-technical innovation capability of the business unit. Downstream customer network connectivity negatively moderates the impact of customer participation as an information source onto NPD innovativeness. Customer participation as a codeveloper onto NPD innovativeness is positively moderated by process interdependence. Firms with successful innovations had customer participation in the following stages: opportunity recognition, customer-based funding, development and testing, commercialization, and feedback. Success was more likely when customers were lead users, technologically eager, and financially committed. Customers can serve as the testing ground for a new product’s innovativeness and relevance during product testing stage, but the link to profits and sales is less clear. Lead customers are an abundant source of new product ideas, but identifying them is crucial. Findings T. Morgan et al. Research Policy 47 (2018) 498–510 Research Policy 47 (2018) 498–510 T. Morgan et al. conversion of ideas into new products may be viewed as a problem solving process (Coviello and Joseph, 2012), and organizations that possess greater ACAP have a better understanding of ideas and technologies to solve problems. Conversely, without high ACAP, firms may succumb to increased costs, information overload, and the development of new products that are too easily imitated by competitors. This problem has been long acknowledged as a major challenge in the open innovation literature, albeit in somewhat different contexts (see, e.g., Anokhin et al., 2011), and we suggest that the shortening exploitation horizons due to insufficient ACAP should be acknowledged as the new reality. Even when the ideas offered by customers are plentiful, without high ACAP the firm may be at a loss at channeling them properly. For example, while customers participating in NPD may offer unique ideas, they may also offer an overabundance of ideas that are unlikely to focus on satisfying the heterogeneous needs of all customer groups or consider the product’s complexity to a general population (Fang et al., 2011; Von Hippel, 2005). ACAP may allow the firm to turn these ideas into products that are appealing to a broader base of end users as high levels of ACAP allow easier matching between ideas from customers and the knowledge base of the firm (Chandy et al., 2006). Moreover, ACAP allows the implementation of solutions with greater ease suggesting that firms can take a wide array of problems and minimize the complexity of the task to reduce costs and thus enhance the overall performance outcomes. In other words, we expect ACAP to moderate the relationship between customer participation and NPD performance. To state formally: customer participation and NPD performance. 2.2. Unpacking contingencies: the moderation effect of absorptive capacity While an abundance of benefits has been explicated, there have been a small number of studies that have examined some potential negative consequences of customer participation, such as inefficient processes and subsequently poor product performance (Chang and Taylor, 2016). Moreover, research has suggested that knowledge transfer may become cumbersome between the firm and customer due to language differences or the increased complexity of meeting firm objectives and customer interests simultaneously (Hoyer et al., 2010; Franke et al., 2013). Similarly, Foss et al. (2011) found that the link between customer knowledge and firm innovativeness is dependent on firm practices. As detailed below, we suggest that ACAP is a necessary prerequisite for building innovative and commercially successful new products when utilizing customer participation. Managing resources and capabilities in a dynamic environment is a challenging task even when they are internal to the firm (e.g., Leonard-Barton, 1992). Incorporating insights from the outside – that is, introducing diverse, potentially discontinuous ideas into the inner workings of the firm – makes this task particularly daunting (Fang et al., 2011) and requires the capability to be integrated effectively and efficiently (Kavusan et al., 2016). We suggest that ACAP is the capability that allows firms to do so as it entails both the acquisition/internalization and the creative deployment of the extraneous knowledge. ACAP’s effects manifest through improving both intraorganizational knowledge transfer (Tsai, 2001) and interorganizational learning (Lane and Lubatkin, 1998) in various contexts including interorganizational partnerships (Lane et al., 2001). We thus expect that a similar pattern should be observed when studying the effect of involving customers into the new product development process. Given the complex, multidimensional nature of ACAP – namely, the fact that it comprises acquisition, assimilation, transformation, and exploitation of knowledge (Zahra and George, 2002) – we anticipate that it will moderate both the principle customer participation–NPD performance relationship and the key mediation path that links customer participation to superior innovativeness of the focal firm. ACAP focuses on the recombination of internal and external knowledge beyond customers and competitors, developing and refining routines that facilitate the existing knowledge with acquired and assimilated knowledge for future use (Zahra and George, 2002) and deploying key resources that the focal firm possesses to obtain and sustain competitive advantage. Substantively, firms with high ACAP may utilize a push market strategy in regard to NPD and innovation. H3. Absorptive capacity positively moderates the relationship between customer participation and NPD performance. 2.2.2. Absorptive capacity and the customer participation – innovativeness relationship Successful innovation often entails recombining existing knowledge, both internal and external (Galunic and Rodan, 1998; Petruzzelli and Savino, 2014), especially when dealing with distant and/or diverse knowledge (Kaplan and Vakili, 2015). Yet, as the breadth of areas tapped for innovative ideas increases, returns to exploiting recombinations may diminish (Cecere and Ozman, 2014). Managing the diversity of ideas – especially as they become more distant from the firm’s knowledge base, which is the case when involving customers into the NPD process – requires specialized capabilities that help the firm assess new knowledge (Cohen and Levinthal, 1990), assimilate and transform it to pursue innovative ends (Kim, 1998), and to harvest the new markets by exploiting the innovative outcomes (Zahra and George, 2002). Firms that have low ACAP may have difficulties in integrating the customer knowledge into firm routines and procedures. They will most likely not have the knowledge structure and developed schema to take overly novel product ideas and convert them to marketable form. Furthermore, firms with lower levels of ACAP may have greater difficulty projecting future success of new products derived from customer input (Lane et al., 2006; Todorova and Durisin, 2007) that are initially deemed new to a wider range of segments. As such, their innovative efforts will not be guided by a strong, unified vision of the future and may render mediocre results (Talke et al., 2010). By definition, a firm with higher ACAP would be better equipped to utilize new ideas from customers that may have not been suggested by internal employees (Tsai, 2001; Szulanski, 1996). Customer participation on its own only ensures that external knowledge and resources become available to a firm; it is the ACAP of the firm that increases the likelihood of the external knowledge being applied to new products in meaningful way (Chandy et al., 2006). Similarly, a firm with high ACAP but no source of external knowledge would not have the information necessary to develop products that are drastically different than their previous products; product developers would simply rely on their 2.2.1. Absorptive capacity and the customer participation – NPD performance relationship NPD success hinges on the confluence of multiple factors (Schemmann et al., 2016), and it is in this context that ACAP emerges as a major contingency that affects the impact of customer participation on NPD performance. As Zahra and George (2002, p. 188) suggest, ACAP influences the firm’s ability to create and deploy the knowledge necessary to build a wide range of capabilities. Because ideas sourced from customers are not limited to any specific phase of the NPD process but are relevant across its steps (Fang et al., 2008), ACAP can facilitate their acquisition and assimilation, ensure effective transformation, and pave the way to effective exploitation. Where customer participation brings about new knowledge, resources, and potentially NPD team members from the customer firm, the focal firm’s ability to assimilate them, weave them into its production processes, and effectively distribute new products will reward the firm with superior performance. All this suggests that having high ACAP facilitates the conversion of customer input into NPD performance and thus should increase the effectiveness of customer participation. It has been argued that the 502 Research Policy 47 (2018) 498–510 T. Morgan et al. existing resource base (Jiminez-Jiminez and Sanz-Valle, 2011). It is the interaction of customer participation and ACAP that is critical to developing new, differentiated products relative to what the firm currently offers. While customers are capable of providing ideas based on their unique experiences (Yli-Renko and Janakiraman, 2008), the ACAP of the developing firm will determine how much those ideas are applied to the NPD process (Zahra and George, 2002). Therefore, we hypothesize: approximately $141 million while the firms averaged 34 years in existence. 33% of firms within the sample sold goods, 44% sold services, and 23% sold both. 42% of firms sold to businesses, 21% sold to consumers, and 36% sold to both. 60% of respondents were senior managers while 40% were employed as functional management (e.g. new product development manager). On average, the respondents had been employed at their firm for 11.5 years and identified themselves as having detailed knowledge of NPD activities. H4. ACAP positively moderates the effect of customer participation on innovativeness. 3.2. Measures 3.2.1. New product performance The new product performance scale for this measure was adopted from Atuahene-Gima and Ko (2001). New product performance is defined as, “the degree to which a new product is perceived to have achieved its market share, sales growth, customer use, and profit objectives” (Atuahene-Gima and Ko, 2001, p. 58). It was measured using six items on a seven-point scale ranging from 1 = strongly disagree to 7 = strongly agree. The scale measures management’s perspectives regarding how new products met overall performance, sales, market share, and customer usage goals. The use of a perceptual measure of performance is acceptable due to previous studies showing that subjective measures have high correlations with objective performance measures (Baker and Sinkula, 2007). An additional benefit is the ability to compare new product performance among firms across multiple industries (i.e. performance across industries inflates variance and reduces comparability) (Atuahene-Gima and Ko, 2001; Zahra, 1993). Similar studies have utilized subjective, interval scales to measure various aspects of NPD performance. For example, Carbonell et al. (2009) and Joshi and Sharma (2004) captured NPD performance by using subjective, interval scale items measuring market share, sales growth, and sales objective accomplishments/sales growth rate. Bonner (2010) and Gatignon and Xuereb (1997) also used subjective, interval scale items to capture new product performance. Relatedly, Fang (2008) used a sevenpoint semantic differential scale to capture NPD speed to market while Ngo and O'Cass (2013) utilized a seven-point Likert scale to measure business unit success for firms launching a new product. While experimental (Fuchs and Schreier, 2011) and archival methods (Yli-Renko and Janakiraman, 2008) have been used in other studies, subjective, interval-scale based appear to be the standard when capturing NPD performance. Furthermore, numerous studies have addressed the subjective-objective data debate and demonstrated that subjective measures consistently have high correlations with objective performance measures (Baker and Sinkula, 2007; Boso et al., 2013; Dess and Robinson, 1984). All NPD performance items loaded onto their respective factor (α = 0.93). 3. Method 3.1. Data collection The data for this study was obtained from 243 U.S. firms and collected via email survey over a total period of six months. The sampling frame for the study was constructed using multiple sources. First, multiple Chamber of Commerce directories from four Midwestern states were used to gain access to contact information of senior level management of firms whose headquarters are in those states. Second, to provide a broader sampling range of firms within the U.S., a commercial list broker was contacted for additional email addresses of senior management in the U.S. In total, 1705 emails were sent to potential respondents. Initially, we received a total of 269 completed questionnaires after two waves of data collection. Although a single respondent for each firm is not ideal, a replication study by Slater and Narver (2000) using multiple, diverse respondents from companies reported similar results compared to Narver and Slater (1990), which used single informants with homogenous backgrounds similar to this study. Although previous research has alleviated this as a cause for concern, we tried to minimize any effects of a single informant by contacting multiple respondents for each firm if contact information was available. Provided that the core focus of this article is on innovation activities of the firm, we removed any respondents that did not have detailed NPD and innovation knowledge. Of the 269 completed questionnaires we received, 26 were removed due to lack of respondent knowledge. The 26 cases were from industries or positions or employment that have been customarily excluded from previous customer participation and innovation studies due to lack of innovation activities within the industry or general lack of NPD knowledge by respondents within the focal industry (e.g. retail) (Fang et al., 2011; Fang, 2008; Chang and Taylor, 2016). As such, the usable responses for this study were from 243 respondents, representing a 20.8% response rate, after accounting for the questionnaires sent to potential respondents from the deleted industries. Comparable response rates have been found in similar primary data collection studies (e.g. Baker and Sinkula, 2002; Gatignon and Xuereb, 1997; Yli-Renko and Janakiraman, 2008) where response rates ranged from 14%–24%. To check for the possibility of non-response bias in our sample, we conducted a series of tests on the respondent population. First, we compared early and late respondents: we found no significant differences in terms of features such as sales, employees, industry, management experience, and customer participation intensity (Armstrong and Overton, 1977; Bruneel et al., 2010). Second, we compared responses from the two sampling frames and found no significant differences. These tests increase our confidence that the survey data are reliable. An additional possible issue with primary data collection via survey is the order effects of questions within the questionnaire. We tried to reduce any order effects by randomizing the sets of questions that respondents saw and randomizing the specific questions within each question set. Within our sample, 14 different industries were represented, as categorized by NAICS, with manufacturing being the most highly represented at 26% of all respondents. Average annual sales were 3.2.2. Customer participation Customer participation was measured on a ten-item scale assessing the level of participation in various NPD activities (e.g., information generation, idea evaluation, co-development of the idea, etc.) from 1 = very superficially to 7 = very deeply. The ten-item scale was originally developed by Fang et al. (2008) following extensive qualitative interviews and quantitative analysis; the scale is useful to our study as it captures both the breadth and depth of customer participation in the NPD process. The items in the scale initially ask firm respondents if customers participate in the ten NPD activities (participation breadth) and if so, to what extent (participation depth). Specific NPD activities where a firm did not have customers participate in were coded as “0”. All items from the scale loaded onto their respective factor and were used in the analysis (α = 0.91). 3.2.3. New product innovativeness To assess the degree of product innovativeness, Atuahene-Gima (1995a,b) degree of product newness to the firm scale has been adopted. The degree of product innovativeness to the firm is defined as 503 Research Policy 47 (2018) 498–510 T. Morgan et al. “the degree of similarity between the new product and those already marketed [and produced] by the firm” (Atuahene-Gima,1995). The scale assesses the degree of product extensions, new product lines to the firm, and new to the world innovations. Items include, “The products/ services we launch at our firm are generally new product or service lines to our firm.” Thus, respondents who agree with these statements view their firm as one that launches products dissimilar to their previous products. The scale consisted of four-item Likert scale where 1 = strongly disagree and 7 = strongly agree. All items loaded onto their respective factor (α = 0.78). appropriate levels and no items needed to be dropped. In support of convergence validity and reliability, Cronbach’s alpha exceeded appropriate thresholds for all items, average variance extracted (AVE) exceeded 0.50, and factor loadings all exceeded 0.60. Inter-item correlations are higher within factors, thus satisfying criteria for discriminant validity. Furthermore, the AVE values are all higher than the shared variance values (squared correlations) between constructs, thus supporting discriminant validity between constructs (Fornell and Larcker, 1981). To assess common method variance, two methods were utilized. First, we employed the Harman One-Factor method and found the first factor to account for approximately 33.14% of the variance, well below the suggested 0.50. Second, we assessed a common latent factor in the SEM process and did not find any items that were impacted beyond appropriate levels for common method variance in regard to standardized loading comparisons, although it cannot be completely ruled out and is a potential limitation of this study. 3.2.4. Absorptive capacity (ACAP) ACAP was measured using the multi-item absorptive capacity scale developed by Flatten et al. (2011). Past research has used Cohen and Levinthal’s (1990) measure of R&D normalized by sales (i.e. R&D intensity) as a measure of absorptive capacity, but research has suggested that there are a multitude of knowledge variables that can affect a firm’s ability to integrate external knowledge into the firm (e.g. Zahra and George, 2002; Jimenez-Jimenez and Sanz-Valle, 2011). As such, the purpose of adopting the scale rather than the traditional method is to capture a more aggregate level of organizational learning, rather than a measure that strictly focuses on R&D. The scale had a total of 14 items assessing a firm’s ability to acquire, transform, assimilate, and exploit knowledge originating from the external environment. The items ranged from 1 = strongly disagree to 7 = strongly agree. Previous research has identified multiple dimensions of ACAP; Zahra and George (2002) suggest two overarching dimensions, potential (i.e. acquire and assimilate) and realized (i.e. transform and exploit) ACAP, while Flatten et al. (2011) uncovered four dimensions of the construct—acquire, assimilate, transform and exploit. Our factor analysis identified the four dimensions following Flatten et al. (2011) and our analysis utilized the second order construct of ACAP with the four individual dimensions loading onto the higher order ACAP factor. All items loaded onto their respective factors (α = 0.90). 4. Empirical analysis and results A seemingly unrelated regression (SURE) model was employed to test the relationships in this study. The SURE model is appropriate in this setting due to the set of regression equations of which measurement error terms may be correlated across equations (Dudley and Silver, 1988) and overestimates of standard errors can be corrected (Hsieh et al., 2006). We tested the appropriateness of the use of SURE by two methods. First, we conducted a Breusch-Pagan test to detect contemporaneous correlations between the error terms (Drechsler et al., 2013). The test statistic from the Breusch-Pagan test in the system of equations was significant (χ2(18) = 48.90, p < 0.001). Second, we compared the standard errors from OLS regression to the SURE equations. The results show that the standard errors are greater in the OLS models suggesting that SURE is a more appropriate method for the system of equations. 4.1. Results 3.2.5. Control variables Needless to say, to make the inferences claimed in this study, we sought to control for additional variables that may explain variance in our dependent variables. As such, we controlled for management experience of the respondent, firm size using employees and sales, firm age, degree of customer learning associated with new products (Atuahene-Gima, 1995a,b), product type (e.g. goods), customer type (e.g. B2B) and industry. The correlations and descriptive statistics of the study can be found in Table 2. We utilized a two-step procedure to examine the relationships in the study. Model 1 examines main effects and Model 2 added the interaction term. Overall, the system of equations for Model 1 demonstrated a good fit to the data (χ2(29) = 216.49, p < 0.001). Hypothesis 1 predicted a positive relationship between the level of customer participation and NPD performance. The results show that customer participation is indeed positively related to NPD performance, indicating that greater integration of customers into NPD activities increases the performance of new products (β = 0.12, p < 0.05). Thus, a standard deviation increase in customer participation increased NPD performance measure by 12%. This provides support for Hypothesis 1. Hypothesis 2 predicted innovativeness as a mediating factor between customer participation and NPD performance. A bootstrapping procedure was conducted to assess the indirect effect of customer 3.3. Validity, reliability, and common method variance A confirmatory factor analysis was run via AMOS 22.0 to confirm the validity and reliability of the data and the measures used. The results of this analysis can be seen in Table 3. Model fit metrics all met Table 2 Correlations and Descriptive Statistics.a 1 2 3 4 5 6 7 8 9 NPD performance Innovativeness Customer participation Absorptive capacity Management experience Employees Salesb Degree of customer learning Firm age Mean St. Dev. 1 2 3 4 5 6 7 8 4.97 4.44 2.44 4.92 11.54 170.53 141000 3.43 33.62 1.12 1.26 1.92 1.20 8.41 830.35 8370 1.41 34.76 0.44 0.25 0.57 −0.01 0.01 0.02 0.02 −0.05 0.33 0.48 −0.05 −0.03 −0.00 0.42 −0.04 0.26 −0.19 −0.07 −0.01 0.40 −0.10 −0.03 −0.03 −0.03 0.18 −0.10 0.15 0.09 −0.09 0.23 0.79 −0.06 0.06 −0.04 0.04 −0.01 All correlations above 0.10 significant at p < 0.0 a Dummies not reported. b In thousands. 504 Research Policy 47 (2018) 498–510 T. Morgan et al. Table 3 Variables and Measures. Construct and Items Factor Loadings NPD Performance adopted from Atuahene-Gima and Ko (2001) 1. New products/services at my firm generally achieve its market share objectives. 2. New products/services at my firm generally achieve its sales and customer use objectives. 3. New products/services at my firm generally achieve its sales growth objectives. 4. New products/services at my firm generally achieve its profit objectives. 5. Our new products/services meets the performance objectives set for them. 6. Overall, our new products/services are successful. 0.69 0.81 0.86 0.90 0.89 0.77 Customer Participation adopted from Fang et al. (2008) How deeply do customers participate in the following activities 1. Idea generation 2. Concept screening 3. Product specification 4. Business evaluation 5. Product design 6. Product engineering 7. Prototyping 8. Product testing 9. Formation of cross-functional new product development team 10. Controlling and monitoring of the development process Response format: 1 = 'very superficially' to 7 = 'very deeply' AVE MSV Cronbach's Alpha 0.74 0.27 0.93 0.60 0.22 0.91 0.82 0.27 0.90 0.53 0.31 0.78 0.54 0.30 0.88 0.73 0.75 0.71 0.66 0.76 0.81 0.81 0.64 0.91 0.88 Absorptive Capacity adopted from Flatten et al. (2011) Acquire 1. The search for relevant information concerning our industry is ever-day business in my company. 2. Our management motivates the employees to use information sources within our industry. 3. Our management expects that the employees deal with information beyond our industry. Assimilate 4. In our company, ideas and concepts are communicated cross-departmental. 5. Our management emphasizes cross-departmental support to solve problems. 6. In our company there is a quick information flow. 7. Our management demands periodical cross-departmental meetings to interchange new developments, problems, and achievements. 0.71 0.93 0.70 0.91 0.93 0.70 0.73 Transform 8. Our employees have the ability to structure and use collected knowledge. 9. Our employees are used to absorbing new knowledge as well as to prepare it for further purposes and to make it available. 10. Our employees successfully link existing knowledge with new insights. 11. Our employees are able to apply new knowledge in their practical work. 0.87 0.88 0.89 0.86 Exploit 12. Our management supports the development of prototypes. 13. Our company regularly considers technologies and adapts them accordant to new knowledge. 14. Our company has the ability to work more effectively by adopting new technologies. 0.70 0.93 0.84 Innovativeness adopted from Atuahene-Gima (1995a, 1995b) The products/services we launch at our firm are generally… 1. improvements of existing products or services, for example improved quality. 2. line extensions, for example adding a new model to an existing product/service line. 3. new product or service lines to our firm 4. real, new-to-the-world innovations. 0.70 0.69 0.85 0.74 Degree of customer learning adopted from Atuahene-Gima (1995a, 1995b) 1. New products/services usually require major learning efforts or experience by our customers. 2. It usually takes a long time before our customers can understand the full advantage or our new products/services. 3. Our new products/service concepts are usually difficult for our customers to evaluate and understand. 4. Our new products/services usually require considerable advance planning by the customers before use. 5. Our new products/services usually involve high changeover costs for the customers. 6. Products/services we launch nowadays are usually more complex than products/services previously launched by our firm. 0.81 0.74 0.73 0.82 0.71 0.70 Model Fit: Chi-square = 1386.56; df = 713; χ2/df = 1.95; RMSEA = 0.06; SRMR = 0.07; CFI = 0.95; NNFI = 0.94; IFI = 0.95. Average variance extracted (AVE) score is calculated according to Fornell and Larcker (1981) and should be greater than 0.5. AVE = Σ(λyi)2/[Σ(λyi)2 + ΣVar(εi)], where λ is the loading of each item. N = 243 respondents. df, degrees of freedom; RMSEA, root mean square error of approximation; SRMR, standardized root mean residual; CFI, comparative fit index; IFI, incremental fit index; NNFI, Tucker Lewis index. standardized indirect effect of 0.08 (p < 0.001). The system of equations for Model 2 demonstrated a good fit to the data (χ2(31) = 224.38, p < 0.001). Hypothesis 3 predicts that a firm’s ACAP positively moderates the relationship between customer participation and new product performance. The results from the analysis show that the coefficient is positive and significant (β= 0.12, p < 0.05); thus, a standard deviation increase in ACAP improved the relationship between customer participation and new product participation’s impact on NPD performance through the innovativeness of new products. Although the Sobel test and Baron and Kenney’s procedure are alternatives for testing mediation effects, extant research suggests that the bootstrapping procedure is more appropriate as it reduces type I error rate and has a higher level of statistical power (Preacher and Hayes, 2008; Hayes, 2009). The results of the bootstrapping procedure show that innovativeness mediates the relationship between customer participation and NPD performance with a 505 Research Policy 47 (2018) 498–510 T. Morgan et al. Table 4 Results from analysis.a Independent Variables Customer Participation in NPD (CP) Model 1 Model 2 Dependent Variables Dependent Variables NPD Performance 0.14** (0.06) 0.45*** (0.06) Absorptive Capacity (ACAP) Innovativeness 0.16** (0.06) .41*** (0.06) CP * ACAP Innovativeness .27*** (0.06) 0.01 (0.05) 0.01 (0.01) −0.07 (0.06) −0.22*** (0.06) 0.01 (0.14) χ2 = 177.13*** 0.37 0.43 Firm Age Management Experience Employees Customer Learning Constant Test Statistic R2 Model 1 System Adjusted R2 [F(29,514) = 22.02***] Model 2 System Adjusted R2[F(31,514) = 21.63***] Standard errors in parentheses. † p < 0.10, *p < 0.05, **p < 0.01, a dummies not reported. *** 0.00 (0.06) 0.01 (0.01) −0.02 (0.06) 0.24*** (0.06) 0.33* (0.14) χ2 = 165.04*** 0.35 NPD Performance 0.12* (0.06) 0.48*** (0.06) 0.12* (0.06) .25*** (0.06) 0.01 (0.05) 0.00 (0.01) −0.06 (0.06) −0.22*** (0.06) 0.01 (0.14) χ2 = 180.03*** 0.43 0.55 Innovativeness 0.14** (0.06) .44*** (0.06) 0.13* (0.06) 0.00 (0.06) 0.00 (0.01) −0.00 (0.06) 0.23*** (0.06) 0.33* (0.14) χ2 = 163.10*** 0.40 p < 0.001. Table 5 Results from Mediation Analysis. Conditional Direct and Indirect Effects at Level of Absorptive Capacity Path Absorptive Capacity Effect Standard Error LLCI ULCI Significance Customer Participation − > NPD Performance L M H −0.06 0.05 0.17 0.09 0.05 0.07 −0.24 −0.06 0.03 0.11 0.16 0.30 NS NS * Customer Participation − > Innovativeness − > NPD Performance NA* L M H 0.08 0.00 0.03 0.08 0.03 0.02 0.01 0.02 0.03 −0.03 0.01 0.02 0.13 0.04 0.06 0.11 * NS * * N = 243. NA* = ACAP as moderator not accounted for in model. LLCI = lower level confidence interval. ULCI = upper level confidence interval. NS = not significant. * = significant. Fig. 1. Customer Participation and Absorptive Capacity interaction on New Product Performance. 506 Research Policy 47 (2018) 498–510 T. Morgan et al. Fig. 2. Customer Participation and Absorptive Capacity interaction on Innovativeness. performance by 12%, providing support for Hypothesis 3. The mediation analysis suggests that only under conditions of high ACAP will customer participation be effective. Hypothesis 4 predicted that a firm’s ACAP positively moderates the relationship between customer participation and the degree of innovativeness. The results from the analysis show that the coefficient is positive and significant (β = 0.13, p < 0.05), thus providing support for Hypothesis 4. Furthermore, the results from the mediation analysis suggest that only under conditions of medium and high ACAP will customer participation be beneficial to developing more innovative products with high ACAP providing the greatest benefits. The results from the analysis can be seen in Table 4, the mediation analysis in Table 5 and the interaction plots can be seen in Figs. 1 and 2, respectively. Table 6 Post hoc analysis of individual customer participation activities. Customer Participation Stage Innovativeness To examine the robustness of the relationships in our model, we utilized a structural equation modeling procedure. We report on these analyses below. The full results are not included due to space limitations, but are available upon request. To minimize the effects of the selfreported nature of the data, we utilized a common latent factor (Podsakoff et al., 2003) in the structural model to reduce any effects of common method bias. As expected, the results of the SURE model are supported. Hypothesis 1 suggests that customer participation positively impacts NPD performance. This hypothesis is again supported (β= 0.17, p < 0.01). Hypothesis 2 states that innovativeness mediates the relationship between customer participation and NPD performance. A boot strapping procedure was conducted using 5000 replications. The results show that innovativeness mediates the relationship between customer participation and NPD performance, accounting for 10% of the total effect (p < 0.01). Hypothesis 3 suggests that ACAP moderates the relationship between customer participation and NPD performance. The results from the analysis show that ACAP positively moderates the relationship (β = 0.12, p < 0.05), thus H3 from the main analysis has further support. Hypothesis 4 suggests that ACAP moderates the relationship between customer participation and innovativeness. The results from the analysis show that ACAP positively moderates the relationship (β= 0.14, p < 0.05), thus H4 from the main analysis has further support. Substantively, our robustness check provides further support for the hypotheses in this study and the main analysis. NPD Performance non-significant Ideation x ACAP positive negative*** negative*** Product specification x ACAP negative* non-significant Business evaluation x ACAP positive* positive* Product design x ACAP 4.2. Robustness check *** Concept screening x ACAP negative * negative* *** positive*** Prototyping x ACAP negative * positive*** Product testing x ACAP positive** positive*** Product engineering x ACAP positive *** Formation of product development team x ACAP positive Controlling and monitoring x ACAP positive* positive*** non-significant * p < 0.05. ** p < 0.01. *** p < 0.001. of the analysis can be seen in Table 6. When ACAP is examined as a moderator in different NPD activities, we uncovered numerous interesting findings. As expected, ACAP has a positive role in stages where tasks are more complex and firms are acquiring, assimilating, transforming and/or exploiting external information. As explained below, ACAP may be largely beneficial to integrating customers into complex activities, but could become counterproductive in stages where firms should rely on their existing, internally-proven processes, such as concept screening and design. On the positive side, we find that formulation of a product development team benefits from ACAP. This seems logical – a truly innovative and successful firm will be able to integrate people of varying viewpoints and backgrounds into a team to work on product development (Zahra and George, 2002; Lane and Lubatkin, 2006). If high levels of ACAP exist in this stage, individuals with new and different ideas should be welcome and the resulting team will be able to develop innovative and successful products, as found in our results. Not surprisingly, we also see that ACAP has a positive, moderating influence onto innovativeness during the ideation stage. These results align nicely with prior literature that found that team ACAP indeed had a positive, moderating impact on firm performance (Engelen et al., 2014) and product innovativeness (Backmann et al., 2015). ACAP also has a positive role in product testing. During the product testing stage, firms gather new information on their products (often from customers) to determine what works and what does not work. This is very similar to the acquisition stage of ACAP (Huang and Rice, 2009; Flatten et al., 2011). Firms with high levels of ACAP should be able to take this 5. Discussion 5.1. Post hoc analysis and managerial implications In order to make proper inferences based on our analysis and to provide more insightful managerial implications, we further set out to explore effects of customer participation and its interaction with ACAP on the stages of customer involvement in the NPD process.2 The details 2 Dependent Variable We would like to thank an anonymous reviewer for this suggestion. 507 Research Policy 47 (2018) 498–510 T. Morgan et al. Another possible limitation is that NPD performance is perceptual rather than empirical. While previous research has explicated the correlations between objective and subjective firm performance measures are high and there are many benefits to subjective measures such as inter-industry comparisons (Atuahene-Gima and Ko, 2001; Dess and Robinson, 1984), future research should explore the notion of measuring these variables directly rather than using a perceptual measure. Further, the addition of objective data would allow us to move away from correlation-based analysis and perhaps closer to identifying the existence of causality. Future studies should also explore the notion of customer participation breadth versus depth and how it affects new product performance. The cost of integrating customers deeply into the new product process includes financial commitment, communication and coordination difficulties, and external knowledge integration. Customer participation breadth may show different results provided by this study. While the results show a potential down side to customer participation when firms have low ACAP, future research should explore how firm resources and capabilities can solve the paradox. Finally, while we added control variables to account for differences in B2B vs. B2C and goods vs. services firms, future research may explicate the differences of each within NPD functions. Customer participation was treated as a single construct in this study, but the post-hoc analysis suggests that more research should be conducted on what activities would benefit most by having customers become involved. We hope this study opens the scholarly dialogue on these issues. information (acquisition) and apply it to new and improved versions of their products. The ability to acquire and utilize new information is truly critical during product testing (Dolan and Matthews, 1993). On the negative side, we found that concept screening, when interacted with ACAP, has a negative impact on innovativeness and NPD performance. This stage is intended to reduce innovative ideas into more realistic and practical solutions. Further, concept screening may depend on existing internal criteria (e.g. budgetary limitations, time limitations, etc.). Thus, high ACAP may cloud this stage. Instead, product developers should rely on their existing processes of screening and drown out external distractions. As noted by Markham and Lee (2013), many of the most successful product developers have set processes that do not change drastically from project to project. While the information sources may change, and the complexity may change, the process stays about the same internally. Once the external information has been acquired through ideation, firms should rely on those set processes for effective screening. While ACAP plays a positive role in innovativeness and NPD Performance, it is not deemed necessary in the concept screening stage. These results lend themselves to future research possibilities analyzing ACAP as both a positive and negative moderator. While we can only speculate as to the specific reasons for these intriguing results, it is possible that absent sufficient ACAP, early-stage activities cannot be duly incorporated into the corporate routines and may in fact cost more to the focal firm than the benefits they bring with them. Furthermore, because these early-stage activities necessarily imprint the following steps of the NPD process, the cost vs. benefit challenge exacerbates to an extent where customer participation is, on balance, a drain on the company’s resources, and not a net benefit unless the task is more complex in nature. Alternatively, because our performance measures are perceptual, it may be that incorporating customer insights at the earliest stages of NPD absent sufficient ACAP is simply too involved for the individuals at the focal firm involved in the process, and shifts the reference point such that the (poorly equipped for absorption) respondents vent their frustration and disappointment at having to incorporate customer input. Future research would be wise to compare if this same negative relationship holds when looking at objective performance metrics. At any rate, however, the managerial implication of this study is clear: companies would benefit more from employing customers into the NPD later and not sooner in the process. In other words, customers are instrumental in bringing the firm strategy to fruition but not at formulating the product strategy itself. 5.3. Conclusion In this paper, the direct and indirect effects of customer participation on new product performance were examined. While the results substantiated previous research’s claim that participation is indeed positively associated with innovativeness and new product performance (Chang and Taylor, 2016), the true impact may be more nuanced. This research suggests that the benefits of customer participation are contingent on high levels of ACAP. The results show that firms without high levels of ACAP may not gain the true benefits highlighted by previous customer participation research. A firm must be able to acquire, transform, assimilate, and exploit the knowledge to maximize any impact that open innovation may have on competitive advantage. Firms with higher ACAP are more equipped to apply customer knowledge to newer, differentiated products than firms with lower levels of ACAP. The results of this study indicate that having a greater ability to internalize external knowledge (i.e. from customers) and exploit it to commercial ends enhances the relationship between customer participation and new product performance. When firms have a lesser ability to integrate customer information into the firm’s processes, open innovation may not be as desirable as previously thought. In other words, if firms wish to have customers participate in NPD activities, they must be able to build upon the knowledge presented to them in order to maximize its effectiveness. This is in line with dynamic capabilities and organizational learning theory (e.g. Moorman, 1995) that suggests that firms may become overwhelmed with information overload unless they have the capabilities of sorting and filtering through such information. Therefore, firms may consider foregoing the involvement of customers during the NPD process unless they have the capacity to internalize the information, capitalize on it, and convert it to commercial ends (Cohen and Levinthal, 1990). Future studies should further explore the notion of how a firm’s ACAP can impact the integration and exploitation of customer knowledge throughout various stages of NPD. Substantively, this research builds upon the continually growing stream of customer participation literature. While previous research has shown that customer participation has many positive outcomes (e.g. Coviello and Joseph, 2012; Chang and Taylor, 2016), this study explicated a key contingency. Firms with lower degrees of ACAP should encourage activities to increase their ACAP capabilities, such as crossdepartmental sharing of knowledge and dedicating time to external 5.2. Limitations The results need to be interpreted in light of the study’s limitations. Common method bias cannot be completely ruled out for this study. While we tried to examine its effects through the Harman One Factor method and utilizing a common latent factor, it still is a possibility. Second, the subjective measures for the variables may be slightly skewed given the firm’s propensity to enhance its favorability. Parts of the questionnaire, such as degree of product innovativeness, may be better off being answered by the customer rather than the firms since the implications for the firm lie within consumer perceptions and learning. The customers’ perceptions in regard to this variable would seem to matter more than the degree of product innovativeness than managers’ perceptions. While a firm may not perceive a dramatic degree of change in product innovativeness, the customer may feel what is offered by the firm in fact is a dramatic change. While our study matches the methodology of similar work within this line of literature (e.g., Atuahene-Gima and Ko, 2001), a future study could remove any potential issues with the single informant design by utilizing customer data in combination with firm data. We tried to control for this by contacting multiple senior level managers at the same firm if contact information was available, but due to anonymity of the survey and not having multiple contacts at every firm, this still presents a limitation to the study. 508 Research Policy 47 (2018) 498–510 T. Morgan et al. information acquisition, to name a few. In fact, firms with low ACAP levels may need to undertake a substantial culture shift before reaping the benefits of integrating customers into their NPD processes. Our second, albeit more minor, contribution is the examination of customer participation across a broader industry range. 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