Mean-variance preferences and investor behaviour

Michael B. Ormiston, Edward Schlee

Research output: Contribution to journalArticlepeer-review

36 Scopus citations


We study the comparative statics implications of mean-variance preferences for optimal portfolios. Specifically, we show that all risk-averse mean-variance investors raise their investment in a risky asset in response to a change in that asset's return distribution if and only if the change lowers both the mean and standard deviation of the return by the same percentage. Besides being of interest in its own right, our results allow us to compare some comparative statics implications and the expected utility and mean-variance models systematically.

Original languageEnglish (US)
Pages (from-to)849-861
Number of pages13
JournalEconomic Journal
Issue number474
StatePublished - Oct 25 2001

ASJC Scopus subject areas

  • Economics and Econometrics


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