Measurement of the market power of firms: the Japanese case in the 1990s

Kozo Kiyota, Takanobu Nakajima and Kiyohiko G. Nishimura

Industrial and Corporate Change, 2009, vol. 18, issue 3, 381-414

Abstract: This article presents a new simple econometric framework for the estimation of individual firms' markup over their marginal cost, taking account of firm heterogeneity, demand-driven cyclical price changes, and the limited availability of firm-level information. The framework is applied to study markup of Japanese firms in manufacturing and wholesale/retail trade for 1994--2002. The results indicate that, on average, the Japanese markets become more competitive in the 1990s than before even in non-manufacturing industries. We also find sizable heterogeneity and non-negligible pro-cyclicality in the markup of the Japanese firms. Copyright 2009 The Author 2009. Published by Oxford University Press on behalf of Associazione ICC. All rights reserved., Oxford University Press.

Date: 2009
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