An Index Number Method for Estimating Scale Economies and Technical Processes Using Time-series of Cross-section Data: Sources of Total Factor Productivity Growth for Japanese Manufacturing, 1964–1988

Sample multicollinearity often makes it difficult to estimate returns to scale. We present an index number method to overcome potential multicollinearity problems when the production function is homogeneous of degree k . We apply our method to estimate empirically the effects of returns to scale and technical progress on growth in total factor productivity (TFP) using establishment data for Japanese manufacturing industries. We find that, while significant scale economies exist in many manufacturing industries, the TFP growth in the last twenty-five years is attributable primarily to technical progress. This finding also validates the current practice of assuming constant-returns-to-scale production functions in macroeconometric modelling.
JEL Classification Numbers: C43, D24, 030.     

Does Culture Matter in Inter-Firm Cooperation? Research Consortia in Japan and the USA

Collaborative research consortia allow firms to pursue scale and scope economies in research, finance large costly proposals, share risks, avoid unnecessary duplication, internalize the externalities created by research spillovers, and allow the use of firm-specific complementary skills and resources. In this study we examine the evolution of cooperative research organizations in the USA and Japan. We explore the factors which influence the emergence of alternative forms of cooperation. Specifically, we examine the role of culture and the institutional environment in molding the organization of cooperation between firms in R&D and the consequences of such cooperation. © 1997 John Wiley & Sons, Ltd.