The Impact of Product Innovativeness on the Link between Development Speed and New Product Profitability*

A review of the literature reveals that the relationship between development speed and new product profitability is not as strong and straightforward as conventional wisdom suggests. A number of studies show positive results, others show mixed results, and some present no evidence of a relationship. In other words, the valence of the link between development speed and new product profitability is unclear at this time. Therefore, this study investigates whether or not speeding new products to market has positive or negative effects on new product profitability. Prior research shows that product innovativeness influences both development speed and new product profitability. This raises the question of whether increasing speed is equally successful in improving profitability across new products that differ in their degree of innovativeness. Therefore, this study also investigates the moderating effect of product innovativeness on the relationship between development speed and new product profitability. The results from a survey‐based study of 233 manufacturers of industrial products in the Netherlands reveal an inverted U‐shaped relationship between development speed and new product profitability. The findings also show that the optimal point is different for two new product types—product improvements and line additions—that vary in their innovativeness. These results provide an onset for the development of a decision tool that helps managers to determine how much to spend on accelerating the development of individual new products and how they should allocate that spending across products in their new product portfolio.     

Exploring Mediating and Moderating Influences on the Links among Cycle Time,Proficiency in Entry Timing,and New Product Profitability*

Development cycle time is the elapsed time from the beginning of idea generation to the moment that the new product is ready for market introduction. Market‐entry timing is contingent upon the new product's cycle time. Only when the product is completed can a firm decide whether and when to enter the market to exploit the new product's window of opportunity. To determine the right moment of entry a firm needs to correctly balance the risks of premature entry and the missed opportunity of late entry. Proficient market‐entry timing is therefore defined as the firm's ability to get the market‐entry timing right (i.e., neither too early nor too late). The literature has produced divergent evidence with regard to the effects of development cycle time and proficiency in market‐entry timing on new product profitability. To explain these disparities this study (1) explores the mediating roles of development costs and sales volume in the relationships among development cycle time, proficiency in market‐entry timing, and new product profitability, respectively; and it (2) explores the moderating influence of product newness on the relationship between development cycle time and development costs and that of new product advantage on the link between proficiency in market‐entry timing and sales volume. The results from a survey‐based study of 72 manufacturers of industrial products in the Netherlands suggest that development costs mediate the relationship between development cycle time and new product profitability and that sales volume mediates the link between proficiency in market‐entry timing and new product profitability. In addition, the findings indicate that new product advantage strengthens the positive relationship between proficiency in market‐entry timing and sales volume. The results provide no evidence for a moderating effect of product newness. These results have important implications because to maximize new product profitability managers need to distinguish between costs and demand side effects of development cycle time and market‐entry timing on new product profitability. Keeping this distinction in mind should help them to better determine the relative profit impact of investments in cycle time reduction or improved entry timing. Moreover, the findings suggest that highly advantaged products that enter the market at the right time may have a highly attenuated sales volume. It also implies that new products with lower advantage may have very little leeway in hitting the “sweet spot” in market. The message is that “doing the right thing” (i.e., to develop a highly advantaged new product) may be at least as important as correctly balancing the risks of premature entry and the missed opportunity of late entry.     

Customization of Product Technology and International New Product Success: Mediating Effects of New Product Development and Rollout Timeliness

Offering a standardized product for different country markets may enable companies to accomplish fast product development and multicountry rollout, whereas also enjoying substantial cost benefits. However, not all manufacturers serving multicountry markets can adopt a standardized product strategy. Where technological requirements, standards, and approval procedures vary substantially across countries, manufacturers invariably must adapt the product's technology to fit individual country requirements. Extensive customization may lead to longer new product development and rollout times and increase the likelihood of delays in the entire project, hence adversely affecting overall new product outcome. This study examines the relationships between product technology customization, the timeliness in completion of both the new product development effort and international market launches, and new product success. The study that reports on new product launches across European markets, is based on personal interviews with senior managers in 30 multinational companies. The authors show that timeliness in new product development and timeliness in rolling out the new product into different country markets mediate the link between product technology customization and overall new product success. Customization of product technology increases the likelihood of delays in the completion of new product development projects and multicountry rollout. Additionally, the timeliness in new product development mediates the relationship between product technology customization and timeliness in international new product rollout. This means that if the NPD project runs behind schedule, a fault‐free multicountry rollout program becomes increasingly unlikely, as problems encountered during product development spillover into the rollout program. The results imply that international product managers must assign greater priority to assessing the relative advantages of customizing new product technology and to consider the timing implications for both the NPD effort and subsequent rollout. Managers must set realistic schedules and allocate sufficient resources to ensure both tasks can be accomplished within planned time scales. Finally, managers should not underestimate the complexities and time involved in customizing new product technologies, including the completion of disparate country technical approval procedures.     

The Role of Market and Technical Information Generation in New Product Development

Firms are investing an increasing amount of time and resources to gather information about market and technology in new product development (NPD). Yet there is a lack of consistent understanding of whether such costly information generation activities can improve product outcomes. More importantly, it is unclear how the benefit of market information and technical information generation may differ and how they may jointly impact new product performance. This study examines the role of market and technical information generation in NPD in three ways: (1) It contrasts the effects of market and technical information generation on product outcomes; (2) it identifies conditions that moderate the effects of market and technical information generation and further investigates how the moderating effects differ for these two types of activities; and (3) it examines the joint effect of market and technical information generation to understand potential synergies between them. Using survey data at the NPD project level, we find that market information generation has an inverted U‐shaped effect on new product advantage, whereas the effect of technical information generation follows a U‐shape. Furthermore, these effects are moderated differently by two conditions: a firm’s R&D intensity that influences NPD projects’ need for different types of information, and the use of multidisciplinary teams that affects the degree to which information can be shared and utilized to improve product design. The findings provide important implications for organizational learning and shed light on how to manage information generation activities to achieve NPD success.     

Enhancing Stock Market Return with New Product Preannouncements: The Role of Information Quality and Innovativeness

To advance development and application of signaling theory in the new product preannouncement literature while seeking to resolve ambiguity regarding the influence of innovativeness on stock market return, the role of information quality is examined. Specifically, this study investigates the effect of innovativeness across low and high levels of information quality. The results, ascertained using event study methodology on a sample of 243 new product preannouncements collected over a nine‐year period, indicate that higher information quality increases the strength of the positive relationship between innovativeness and stock market return. The findings offer managers insight into what role information quality plays in new product preannouncements that can help their firms generate higher stock market return.     

探索动力事业又好又快 发展的新思路

30年来,在中国特色社会主义理论指引下,特别是在科学发展观统领下,我国各项事业得到快速发展。中国航天科工集团公司肩负着富国强军的神圣使命,正在努力建设成为国际一流航天防务公司,所以,必须用科学发展观为指导,解放思想、大胆改革,用科学发展观破解前进道路上的矛盾和腾飞过程中的难题,才能从根本上促进国防科技事业又好又快发展。     

Exploring the Nonlinear Impact of Organizational Integration on New Product Market Success

This article explores the nonlinear relationship between organizational integration and new product market success (NPMS). The concept of organizational integration was measured by assessing the degree of integration among various groups of people involved in the development of new products including new product development (NPD) teams that are typically the focal points of NPD efforts. New product market success was measured by examining four often‐used measures of NPD success. The mail survey research approach was used to gather empirical data from NPD managers in three major industries. The data gathered from this survey process were used as the basis from which to extract information to address this study's major research questions, which include: (1) How is the degree of new product market success related to the nonlinear degree to which groups of people (including NPD teams) integrate during NPD processes? and (2) How is the degree of new product market success related to the nonlinear degree to which separate groups of people (e.g., customers, suppliers, and functional departments) integrate during NPD processes? This study found that high levels of organizational integration (overall organizational integration and supplier organizational integration) during NPD processes are associated with high levels of new product market success. Additionally, this study found that the relationship between new product market success and organizational integration (customer organizational integration and functional organization integration) during NPD processes exhibit nonlinear, U‐shaped relationships. Therefore, the first important finding of this study confirms that various forms of organizational integration impact in a positive way the market success of new products. This suggests that management responsible for all NPD projects should consciously integrate important groups of people to support such developments. This study's findings also confirm and imply that new product developers in the studied industries should integrate marketing and research and development (R&D) over the duration of the NPD process. This suggests that new product managers must be proactive to assure that members of NPD teams are actively engaged with groups of supporting people within and outside new‐product–producing organizations. Unlike prior research, a major finding of this study suggests that the association between organizational integration and new product market success does not form inverted U‐shaped relationships. Data from this research imply that new product market success is linearly influenced by overall and supplier organizational integration. However, this study's data suggest that new product market success is nonlinearly influenced by customer and functional organizational integration. This study's data suggest that when customer organizational integration and/or functional organizational integration is increased, new product market success can be increased at a rate which is greater than a linear rate.     

Exploring New Product Development Project Review Practices*

Most organizations use new product development (NPD) processes that consist of activities and review points. Activities basically solve problems and gather and produce information about the viability of successfully completing the project. Interspersed between the development activities are review points where project information is reviewed and a decision is made to either go on to the next stage of the process, stop it prior to completion, or hold it until more information is gathered and a better decision can be made. The review points are for controlling risk, prioritizing projects, and allocating resources, and the review team typically is cross‐disciplinary, comprising senior managers from marketing, finance, research and development (R&D), or manufacturing. Over the past four decades, research has greatly advanced knowledge with respect to NPD activities; however, much less is known about review practices. For this reason, the present paper reports findings of a study on NPD project review practices from 425 Product Development & Management Association (PDMA) members. The focus is on three decision points in the NPD process common across organizations (i.e., initial screen, prior to development and testing, and prior to commercialization). In this paper, the number of (1) review points used, (2) review criteria, (3) decision makers on review committees and the proficiency with which various evaluation criteria are used are compared across incremental and radical projects and across functional areas (i.e., marketing, technical, financial). Furthermore, the associations between these NPD review practices and new product performance are examined. Selected results show that more review points are used for radical NPD projects than incremental ones, and this is related to a relatively lower rate of survival for radical projects. The findings also show that the number of criteria used to evaluate NPD projects increases as NPD projects progress and that the number of review team members grows over the stages, too. Surprisingly, the results reveal that more criteria are used to evaluate incremental NPD projects than radical ones. As expected, managers appear to more proficiently use evaluation criteria when making project continuation/termination decisions for incremental projects; they use these criteria less proficiently during the development of radical projects, precisely when proficiency is most critical. At each review point, technical criteria were found to be the most frequently used type for incremental projects, and financial criteria were the most commonly used type for radical ones. Importantly, only review proficiency is significantly associated with performance; the number of review points, review team size, and number of review criteria are not associated with new product performance. Furthermore, only the coefficient for proficiently using marketing criteria was significantly related to new product program performance; the proficiency of using financial and technical information has no association with performance. Finally, across the three focal review points of the NPD process in this study, only the coefficient for proficiency at the first review point, (i.e., the initial screen) is significantly greater than zero. The results are discussed with respect to research and managerial practice, and future research directions are offered.     

Practices that Support Team Learning and Their Impact on Speed to Market and New Product Success

Competition is fierce today. Businesses are feeling extreme pressure to innovate and do so quickly. If they take too long in bringing a product to market or make a mistake along the way, they can be preempted by a faster moving competitor. One technique gaining popularity to help companies compete is establishing learning teams—teams that create and use knowledge rapidly and effectively. But how do teams learn? By studying the learning practices of 95 new product teams, we have uncovered several factors that improve a new product team’s ability to learn, innovate faster, and be more successful. These factors include thoroughly reviewing project information, having stable project goals, and following a rigorous new product development process.     

Neo‐Rawlsian Fringes: A New Approach to Market Segmentation and New Product Development*

Prior research into the link between new product development and market segmentation has focused on two main approaches: (1) design, segment, and do limited competitive evaluation; and (2) segment first, design second. This paper proposes a third approach, which is to simultaneously design, perform segmentation according to benefit and to evaluate against competitive designs. This research uses a benefit segmentation technique based on conjoint analysis (or other techniques that relate product attributes to consumer utility) in which the segments emerge simultaneously with the design based on certain design principles or “strategies.” Herein a method is proposed to narrow down the many possible feasible designs (combinations of attributes) to a finite set and to examine the appeal of each design. Five distinct design strategies are proposed for modeling and studying competitive reaction. These include “traditional” ones such as differentiation and new ones whose fringe customers have high utility. The paper shows that these five strategies are adequate for modeling competitive reaction using simulation. Another contribution of the paper is the way competitive reaction is modeled. In generating and evaluating a design the desire herein is also to assess the defensibility of the design and include it in the evaluation criteria. These issues are addressed by decomposing the solution procedure into two phases. In the first phase, different optimal designs are created based on predefined product development strategies. In the second, these optimal designs are compared against one another with regard to market share and potential to secure market leadership. This work shows that the nature of competition as well as the variability of customer preferences are critical to how a strategy performs. This process uncovers a surprisingly robust design strategy—developing attributes such that a “lower fringe” is most satisfied—that even achieves market dominance under certain conditions. This methodology is also applied to partworth data on refrigerators, which provides a concrete example of the concepts and demonstrates results consistent with the propositions developed earlier in the paper.     

Improving Supplier New Product Development Performance: The Role of Supplier Development

Suppliers play an increasingly central role in helping firms achieve their new product development (NPD) goals. The literature implicitly assumes that suppliers are able to meet or exceed the quality standards and technological expectations of the firm, and yet, in practice, suppliers often lack the technological capabilities needed to undertake collaborative NPD. In such situations, a firm may choose to intervene and actively develop the supplier's technological and product development capabilities. We develop a theoretical framework that conceptualizes supplier development activities within interorganizational NPD projects as part of a bilateral knowledge‐sharing process: design recommendations, technical specifications, and new technology flow from supplier to the firm, and in turn, the firm can implement supplier development activities to upgrade the supplier's technological capabilities. Antecedents (supplier responsibility, skills similarity, single sourcing strategy) and consequences of supplier development activities (on supplier, product, and project performance) are examined using a sample of 153 interorganizational NPD projects within UK manufacturers. We find broad support for our hypotheses. In particular, we show that the relational rents (in the form of improved product and project performance) attained from supplier development activities in new product development are not achieved directly, but rather indirectly, via improvements in the supplier's creative and technological capabilities. Our results emphasize the importance of adopting a strategic view of the potential returns available from investing in the NPD capabilities of key suppliers, and provide clues about underlying reasons for the suboptimal experiences of many companies' collaborative NPD projects.     

Principles of New Product Management: Exploring the Beliefs of Product Practitioners

Conventional wisdom might lead us to conclude that the various disciplines involved in product development and management are often at cross-purposes. For example, practitioners from R&D and engineering have been known to suggest that marketing fails to understand the technical trade-offs involved in product management decisions. Conversely, marketing professionals sometimes complain that their technology-oriented colleagues pursue product development initiatives without adequate market awareness. And practitioners from both sides of this debate have asserted that research on new product development tends to be of the ivory tower variety, with little or no relevance for industry. Are such complaints valid? Perhaps it is time for a reality check. By searching academic literature on product development, Roger J. Calantone, C. Anthony Di Benedetto, and Ted Haggblom have compiled a list of 40 fundamental principles of new product development. This list forms the basis for a survey of new product practitioners from marketing and technical disciplines. The study provides a means for assessing whether practitioners agree with the fundamental principles of new product development that are identified in current academic literature. By obtaining responses from both marketing and technical professionals, the survey also sheds light on whether those two groups hold fundamentally different beliefs regarding new product development. The survey results reveal strong overall agreement among practitioners regarding these fundamental principles of new product management. Managers believe that 80% of the principles are either usually or almost always true. In other words, the survey results support the idea that the academic community is pursuing research issues that are relevant to practitioners, and that they are reaching valid conclusions. There are only a few cases in which the responses from the technical and marketing practitioners differ. Those disagreements probably result from differences in the basic orientations of the two groups. For example, it is not surprising that marketing managers would be more likely to agree that “product users and the marketplace form the most important source for new product ideas,” while technical managers more strongly support the idea that “radically new technologies constitute an important source of new product ideas.” The respondents noted overall disagreement with only a few of the 40 principles. In many of these cases, the academic literature has reached mixed conclusions. In other words, these “principles” might actually be oversimplifications, and further research is probably needed before we can fully understand the issues involved.     

An Examination of Collaboration in High-Technology New Product Development Processes

For more than a decade, researchers have explored the benefits of eliminating organizational boundaries between participants in the new product development (NPD) process. In turn, companies have revamped their NPD processes and organizational structures to deploy cross-functional teams. These efforts toward interfunctional integration have produced a more responsive NPD process, but they don’t represent the endgame in the quest for more effective NPD. What’s next after the interfunctional walls come down?Pointing out that many high-tech firms have already taken such steps as integrating customers and suppliers into the NPD process, Avan Jassawalla and Hemant Sashittal suggest that such firms need to go beyond integration and start thinking in terms of collaboration. Using information from a study of 10 high-tech industrial firms, they identify factors that seem to increase cross-functional collaboration in NPD, and they develop a conceptual framework that relates those factors to the level of cross-functional collaboration achieved in the NPD process.Compared to integration, collaboration is described as a more complex, higher intensity cross-functional linkage. In addition to high levels of integration, their definition of cross-functional collaboration includes the sense of an equal stake in NPD outcomes, the absence of hidden agendas, and a willingness on the part of participants to understand and accept differences while remaining focused on the organization’s common objectives. Collaboration also involves synergy—that is, the NPD outcomes exceed the sum of the capabilities of the individual participants in the NPD process.Their framework suggests that structural mechanisms such as cross-functional teams can provide significant increases in NPD-related interfunctional integration. However, high levels of integration do not necessarily equate to high levels of collaboration. Characteristics of the organization and the participants also affect the level of collaboration. For example, achieving a high level of collaboration depends on participants who contribute an openness to change, a willingness to cooperate, and a high level of trust. Their framework also points to key organizational factors that affect the level of collaboration—for example, the priority that senior management gives to NPD and the level of autonomy afforded to participants in the NPD process.     

Consequences of New Product Development Speed: A Meta‐Analysis

Five meta‐analyses previously have been published on the topic of new product development involving the concept of new product development speed. Three of these studies have investigated antecedents to new product development success, of which just one was new product development speed. The other two studies used new product development speed as the dependent variable, and analyzed antecedents to achieving speed. This article extends previous empirical generalizations in this domain by using a meta‐analytic methodology to understand the link between new product development speed and new product success at a more granular level. Specifically, it considers the relationship with different dimensions of success as measured overall or compositely, operationally (i.e., the process measures of decreasing development costs and proficiently managing market entry timing and the product measures of technical product performance and product competitive advantage), and relative to external success outcomes (i.e., customer based and financial success). While the results indicate that, in general, new product development speed is associated with improving success outcomes, those relationships may diminish or even disappear depending upon a number of methodological design decisions and research contexts. A subsequent meta‐analysis of the antecedents of development speed provides a more holistic picture of development speed. These results are broadly consistent with those produced by another recent meta‐analytic investigation of the issue. Together, these findings have important implications for academics pursuing further research in this domain, as well as for managers considering implementing a program to increase new product development speed.     

Exploring Retail Bank Performance and New Product Development: A Profile of Industry Practices

Based on their survey, Eric Reidenbach and Donald Moak report that various aspects of new product development practices are associated with different levels of retail bank performance. Such practices and activities as the existence of a formal evaluation process, the existence of new product managers, the length of time a product spends in development, and the percentage of the operating budget spent on new product development tend to vary according to bank performance. Top performers have decidedly different new product development processes, structures, and practices than do average or negative performers.     

The Role of Market Information in New Product Success/Failure

Although no single variable holds the key to new product performance, many of the widely recognized success factors share a common thread: the processing of market information. Understanding customer wants and needs ultimately comes down to a company's capabilities for gathering and using market information. And another well-acknowledged success factor the integration of marketing, R&D, and manufacturing focuses on the sharing of information. In other words, a firm's effectiveness in market information processing—the gathering, sharing, and use of market information—plays a pivotal role in determining the success or failure of its new products. Brian D. Ottum and William L. Moore describe the results of a study that examines the relationship between market information processing and new product success. They also explore the organizational factors that facilitate successful processing of market information, and thus offer ideas for better managing the development of new products. The respondents—marketing, R&D, and manufacturing managers from Utah-based computer and medical device manufacturers—provided information about 58 new products, including equal numbers of successes and failures. The survey responses reveal strong relationships between product success and market information processing, with success most closely linked to information use. In other words, the gathering and sharing of information are important, but only if the information is used effectively. In 80 percent of the product successes studied, the respondents ultimately possessed and used a greater than average amount of market information. And in 75 percent of the failures, the respondents knew less than average about the market at project inception, and gathered or used less than the average amount of market information during the project. For the projects in this study, the integration of marketing, R&D, and manufacturing contributed not only to the sharing and use of information, but also to overall project success. However, the results of the study suggest that the way in which a project is organized plays only an indirect role in determining new product success—most likely by improving the processing of market information. From a managerial perspective, the most important variables identified in the study are market information shared, market information used, and financial success.     

New Product Development Structures: The Effect of Customer Overload on Post-Concept Time to Market

In corporate policy statements, seminars, journal articles—even in television commercials—the message comes through loud and clear: To remain competitive, we must do a better job of listening to our customers. Through close contact with customers, designers can more accurately identify market requirements, quickly refine product specifications, and thus reduce time to market. However, too much customer input can create confusion and duplication of effort, which ultimately increases time to market. In other words, some firms run the risk of over-listening to their customers. In a study of three global players in the electronic component industry, Srikant Datar, Clark Jordan, Sunder Kekre, Surendra Rajiv, and Kannan Srinivasan explore the effects of having too much input from customers. Specifically, they examine the relationship between a company's new product development structure and the volume of customer input, which in turn can affect time to market. The high-tech, fast-cycle firms examined in this study employ two distinct new product development structures: concentrated and distributed. A concentrated structure locates all product designers in one facility. This facilitates cross-product learning among designers, but limits designers' contact with customers and process engineers. A distributed structure disperses new product development among numerous manufacturing sites, giving designers close contact with customers and process engineers. However, a distributed structure limits designers' opportunities for cross-product learning. Analysis of 220 new product efforts reveals that the distributed structure offered a time-to-market advantage as long as these firms efficiently managed the level of customer interaction. When designers received input on the product design from no more than 25 customers, the distributed structure provided shorter time to market than the concentrated structure. Beyond the 25-customer level, time-to-market performance of the distributed structure degraded quickly and at an increasing rate. In such cases, more effective management of customer interaction might allow firms employing a distributed structure to enjoy the benefits not only of customer input, but also of improved coordination between product designers and process engineers.     

The Role of the User in Successful New Product Development

Abstract: The purpose of the study reported in this paper is to examine the view that one of the reasons for the poor performance of British companies in certain engineering industries may be the relatively low technical sophistication of its domestic customers. Data for the study were collected predominantly by mail questionnaire from customer organisations in Great Britain and West Germany. The results of the study suggest that British customers are significantly less receptive to new technology than their West German counterparts, and less demanding of new technology from their suppliers. Given the importance of the domestic customer to new product development activity this appears to be a major problem for British suppliers, and suggests an alternative approach to public policy designed to improve the innovative performance of British Industry in these sectors.     

PERSPECTIVE: Empirical Generalization and the Role of Culture in New Product Development*

Empirical generalization continues to be a challenge in most applied fields that favor publication of original results. The purpose of this study was to report on a new product development exercise in one, controlled cultural setting, which replicates and extends Ettlie (2002) . Results from four recent graduate business classes in Portugal show that the background of students—technical versus other or mixed—is a nearly perfect predictor of the average or central estimates the class makes tendency (median) of new product success in the exercise. Country matters little. These results have now persisted over nearly seven years, and implications are discussed concerning theory, practice, and future research.     

Market Orientation and the New Product Paradox

The extant literature shows that the strength of the market orientation–performance relationship decays as the terminal measure of performance shifts from new product success to profitability to market share. As Day (1999) concluded, a broader nomological inquiry is needed to more fully understand the nature and limits of market orientation's effects. This suggests that a broader nomological inquiry is needed to fully understand the nature and limits of market orientation's effects.
Utilizing a national sample of marketing executives, the present study's purpose is to build a fuller understanding of the effects of market orientation on firm performance. Its structural equations model includes measures of new product success, profitability, and market share.
The research reinforces a strong positive relationship between market orientation and new product success. The expanded nomological network under study, however, implies barriers to market orientation's effectiveness. First, market-orientation-inspired increases in the priority firms place on "breakthrough" learning without commensurate increases in the priority placed on "breakthrough" innovation capabilities can boomerang and negatively impact new product success. Second, market-orientation-inspired new product development programs that are unable to increase market share can negatively impact profitability. These gatekeepers to the success of market orientation underscore the need for firms to coordinate a strong market orientation with resources and capabilities that increase the effectiveness of the marketing function. Without such coordination, the positive effect of market orientation on new product success may be limited to incremental innovations, and the overall effect of successful new products on profitability may be limited.