A Simple Proof That Futures Markets are Almost Always Informationally Inefficient

Previous work which showed that prices could aggregate perfectly the diverse information of traders depended critically on the assumption that all agents had constant absolute risk utility. We show that either all agents must have constant absolute risk aversion utility, or all must have constant relative aversion in order for the strong form of the efficient market hypothesis to hold generically.

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Year of publication:	1989-12
Authors:	Gale, Ian ; Stiglitz, Joseph
Institutions:	National Bureau of Economic Research (NBER)

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Extent:	application/pdf
Series:	NBER Working Papers.
Type of publication:	Book / Working Paper
Notes:	ME Number 3209
Source:	RePEc - Research Papers in Economics

Persistent link: https://www.econbiz.de/10005049963