Remark on “Appropriateness and Impact of Platform-Based Product Development”
指出，当平台制造存在过度设计成本时，采用平台会降低产品线差异化，这与Krishnan和Gupta（2001）的结论相反。作者给出了过度设计成本的通用定义，并证明对所有满足该定义的成本函数，平台采用都会减少产品差异化。
When platform-based manufacturing exhibits overdesign costs then platform adoption will lead to a decrease in product line differentiation. In contrast, Krishnan and Gupta (2001) argued that in the presence of overdesign costs and platform economies, platform production always leads to a more differentiated product family. While Krishnan and Gupta analyzed one particular parameterized cost function and define overdesign costs and platform economies narrowly in terms of their parameters, I propose a general definition of overdesign costs and show that platform adoption reduces product differentiation for all cost functions satisfying this definition, regardless of whether or not they exhibit platform economies.