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Entry and Schumpeterian Profits

其他書名	How Technological Complexity Affects Industry Evolution
出版	SSRN, 2013
URL	http://books.google.com.hk/books?id=L3TbzwEACAAJ&hl=&source=gbs_api

註釋A large empirical literature has documented differences in Schumpeterian profits, both among firms in single industries and between firms in different industries. Theorists have proposed various institutional and strategic factors to account for such differences but have had relatively little to say about the manner in which technology affects entry and profits. In this paper I present a model in which persistent intraindustry differences in firm profitability arise as the outcomes of learning and imitation, and interindustry differences in the persistence of above normal profits arise solely from production being more technologically complex in some industries than in others.