5HOPKINS,H DONALD.Firm Size:The Interchangeability of Measures[J].Human,Human Relations,New York,1988.
6COHEN W M,KLEPPER S.The anatomy of industry R&D intensity distributions[J].American Economic Review,1992.
7AGARWAL,RAMASWAMI S N.Choice of Foreign Market Entry Mode:Impact of Ownership,Location and Internationalization Factors[J].Journal of International Business Studies,1992.
