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Journal of Political Economy Vol. 95 No. 2 1987

Knight on Risk and Uncertainty

Stephen F. LeRoy; Larry D. Singell

Abstract

It is argued that the received interpretation of Frank Knight's_(1921) classic risk-uncertainty distinction-as concerning whether or not agents have subjective probabilities-constitutes a misreading of Knight. On the contrary, Knight shared the modern view that agents can be assumed always to act as if they have subjective probabilities. The authors document their contention that by uncert ainty Knight instead meant situations in which insurance markets collapse because of moral hazard or adverse selection. Knight's discussion of market failure, a lthough always informal and in placesinaccurate, was in many respects a remarka ble anticipation of the modern literature.

DOI
10.1086/261461
Volume
95
Issue
2
Pages
394-406
Language
en
Sources
crossref openalex

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