Competitive Profits in the Long Run.
Profit rates differ across industries. Explanations have often relied on static models of imperfect competition. This paper develops a dynamic model of perfect competition to demonstrate that long-run average profit rates differ even across competitive industries when the effects of sunk costs on entry and exit are considered. The hypothesis that firms maximize their present expected values has few empirical implications for long-run average profit rates, but it does have implications for the behavior of variables over time; for example, industries with high variability in the number of firms should exhibit low variability in firm values. Copyright 1992 by The Review of Economic Studies Limited.
Year of publication: |
1992
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Authors: | Lambson, Val Eugene |
Published in: |
Review of Economic Studies. - Wiley Blackwell, ISSN 0034-6527. - Vol. 59.1992, 1, p. 125-42
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Publisher: |
Wiley Blackwell |
Saved in:
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