Designing Products for Adaptability: Insights from Four Industrial Cases

Developing products that are more easily adaptable to future requirements can increase their overall value. Product adaptability is largely determined by choices about product architecture, especially modularity. Because it is possible to be too modular and/or inappropriately modular, deciding how and where to be modular in a cost‐effective way is an important managerial decision. In this article, we gather data from four case studies to model effects of firms’ product architecture decisions at the component level. We optimize an architecture adaptability value (AAV) measure that accounts for both the benefits of more architecture options and the costs of interfaces. The optimal architecture prompted each firm to rearchitect an existing product to increase its expected future profitability. Several insights emerged from the case evidence during this research. (i) Although decomposing an architecture into an increasing number of modules increases product adaptability, the amount of modularity is an insufficient predictor of the adaptability value of a system. AAV, which also accounts for interface costs, provides an improved measure of appropriate modularity. (ii) Managers can influence the path of architectural evolution in the direction of increased value. This influence may diminish but does not disappear as products become more mature. Also, modularity and innovations coevolved, as the new modularizations suggested by AAV optimization prompted and guided searches for further innovations. (iii) When presented with the concepts of options, interface costs, and AAV, the firms’ designers and managers were initially skeptical. However, in each case, the modelers were able to rearchitect an actual product not only with increased AAV by our model (theoretical improvement) but also with actual future benefits for their firm. Postproject reports from each firm confirmed that the AAV modeling and optimization approaches were indeed helpful, equipping them to increase the adaptability, cost‐efficiency, lifespan, and overall value of actual products. The evidence suggests that firms can benefit from designing products for adaptability, but that how they do so matters. This study expands our understanding of modularity and adaptability by illuminating managerial decisions and insights about appropriate approaches to each.     

Does it pay to be eco? The mediating role of competitive benefits and the effect of ISO14001

Eco-innovation has become an important instrument to help companies reduce their environmental impact and gain a competitive advantage in increasingly competitive environments. Despite recent research conducted in this field, findings concerning the relationship between eco-innovation and firm performance remain conflicting, inconclusive and incomplete. This study aimed to clarify this relationship by incorporating competitive benefits as a mediator between eco-innovation and firm performance. Three core questions are examined: How does eco-innovation influence competitive benefits and firm performance? Do competitive benefits mediate the relationship between eco-innovation and firm performance? How does ISO14001 influence competitive benefits and firm performance? The study finds that competitive benefits mediate and strengthen the relationship between eco-innovation and firm performance. In addition, the results reveal that ISO14001 positively affects competitive benefits and thus leads to greater competitive benefits, while the association between ISO14001 and firm performance is not found to be statistically significant. The paper concludes with a discussion of implications for policy makers and companies, limitations, and future research directions.     

Disentangling the effects of organizational controls on innovation

The strategy and innovation literatures argue that organizational competitiveness is contingent upon firms simultaneously pursuing both process and product innovations. A firm’s control system plays a fundamental role in this regard by managing, motivating, and coordinating employees’ behaviors for the development of its innovative capabilities. Research suggests that in order to develop successful innovation, management must use controls that align employees’ interests with those of the organization while simultaneously allowing employee autonomy to encourage creativity. These disparate functions lead to the control–autonomy dilemma. We argue that managers can address this dilemma by recognizing that the effect of controls on innovation outcomes depends, in part, on the controls’ enabling features and the type of commitment they inspire. Our findings show that employee development, which is the focus of input controls, has a direct effect on process innovation-related behaviors while specified goals, the emphasis of output controls, have a direct effect on product innovation-related behaviors. It is only through employees’ perceptions of managerial support that input controls increase product innovation-related behaviors and output controls increase process innovation-related behaviors.     

Effect of product and geographic diversification on company performance: Evidence during an economic crisis

Based on a novel sample of Spanish listed companies from nonfinancial sectors, we explore the effect of product and geographic diversification on company performance during an economic downturn. The study develops comprehensive models to understand the interaction effect of both strategies on company performance. We find a U-shaped geographic diversification–performance relationship and no evidence of a positive effect from product diversification, unless combined with high levels of geographic diversification. The results show that companies improved their performance by combining these strategies. The results are robust after controlling for the endogeneity of both types of diversification. Our findings highlight that geographic diversification is an effective and valuable strategy in economic downturns. Furthermore, this study confirms the importance of the interaction between product and geographic diversification to determine the total effect of product or geographic diversification on company performance.     

高校科研产品质量管理问题研究

在以学校作为主体的质量管理体系组织结构基础上,结合质量管理基本原则,针对高校科研产品质量管理过程中所存在的主要问题,从组织、职责、政策、机制等方面研究了这些问题并提出了相应的解决方法。     

KENDALL'S TAU AND CONTINGENCY TABLES

Kendall's tau is a coefficient of concordance between two rankings of n objects. Its definition and large sample normal approximation are easily extended to the case where one of the rankings contains ties. In this paper, definition and normal approximation are extended further to the case where both rankings contain ties. The results are applied to give a fully distribution-free test for two-way contingency tables with ordered categories.     

Cost models for evaluating virtual design strategies in multicycle product families

Rapid technological change and increased competition are forcing firms to compress the time it takes to develop product families and rapidly realize innovations among successive family members (models). Competition in rapidly changing high-variety markets requires effective management of design information across successive generations of products as well as in the same product generation. This paper considers two complementary approaches to design information management: virtual design and modular design. Virtual design describes the abstraction hierarchy used to represent product function. Modular design describes the hierarchy of physical realizations of the product and leads to a group technology approach to manufacturing. An analytical model is used to describe the impact of design management strategy characterized by investment in tools and infrastructure for virtual design and group technology on product development costs. This model provides insight into the impacts on costs of the mix of standard and revised parts in a product family. Virtual design has greatest impact on cost when there is a large proportion of parts revision, while group technology has most impact on cost when large numbers of standard parts are re-used. Effective management strategy for high variety rapidly changing products should combine both of these approaches and emphasize compatible organizational methods and technology integration.     

拟周期算子的均质化过程

本文研究具振荡拟周期系数的均质化过程,首先得到了拟周期函数的一些有趣性质,然后证明了拟周期算子的一个均质化定理.     

上海股市价格聚集现象及影响因素研究

选取上证50指数成份股半年的高频分笔数据，实证研究了上海股市的价格聚集现象。结果显示，上海股市存在显著的价格聚集现象，且开盘阶段价格聚集程度显著高于其余时间的日内效应。同时对价格聚集的影响因素进行了回归分析，发现股价大小、股价波动性和每笔交易额对价格聚集有显著的正影响，而股票的流通市值和每天交易笔数的影响显著为负。最后，对限价指令薄的价格聚集现象进行研究，并做了进一步的分析。     

Perturbation analysis for an orthogonal least-squares estimator

Coordinate measuring machines (CMMs) are used to check the geometric integrity of component parts. The geometric constraints to which a part must conform, as defined e.g., by The American National Standards Institute, assume the use of some type of gauging system when inspecting the part. Statistical issues arise in interpretting CMM data in the inspection of part tolerances. We consider a set of n planar regions on the surface of a part. The unit vector normal to each plane is estimated by orthogonal least squares. The small-sample density of this estimator (on the unit sphere S²) is determined asymptotically as the variance of the CMM error approaches 0. To a first-degree approximation, this density is Fisher-von Mises. Diagnostics are reviewed to test the geometric constraint that the n planar regions are oriented correctly with respect to one another, and to test the flatness of planar regions.