Journal of Political Economy Vol. 90 No. 4 1982
Efficiency of Experimental Security Markets with Insider Information: An Application of Rational-Expectations Models
Abstract
The study reports on the ability of competing models of market information integration and dissemination to explain the behavior of simple laboratory markets for a one-period security. Returns to the security depended upon a randomly drawn state of nature. Some agents (insiders), whose identity was unknown to other agents, knew the state before the markets opened. With replication of market conditions the predictions of a fully revealing rational-expectations model are relatively accurate. Prices adjusted immediately to near rational-expectations prices; profits of insiders were virtually indistinguishable from noninsiders; and efficiency levels converged to near 100 percent.
- Volume
- 90
- Issue
- 4
- Pages
- 663-698
- Sources
- bibtex:phds-export.bib