Some Properties of Generalized Concave Functions

W. A. Thompson and Darrel W. Parke
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W. A. Thompson: University of Missouri, Columbia, Missouri
Darrel W. Parke: University of Missouri, Columbia, Missouri

Operations Research, 1973, vol. 21, issue 1, 305-313

Abstract: This paper examines properties and interrelations of several concepts of generalized concavity. It shows that the class of functions that are both “generalized concave” and “generalized convex” is closely related to the class of monotone functions of a single variable. After excluding a certain small class of exceptions, the paper shows that, for arbitrary (perhaps not differentiable) functions, concave implies pseudoconcave, pseudoconcave implies strictly quasiconcave, and strictly quasiconcave implies quasiconcave. Several results characterizing the extreme values of generalized concave functions are given.

Date: 1973
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Persistent link: https://EconPapers.repec.org/RePEc:inm:oropre:v:21:y:1973:i:1:p:305-313

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