Journal Of The Econometric Society

An International Society for the Advancement of Economic
Theory in its Relation to Statistics and Mathematics

Edited by: Guido W. Imbens • Print ISSN: 0012-9682 • Online ISSN: 1468-0262

Econometrica: Sep, 1985, Volume 53, Issue 5

Iterative Price Mechanisms<1117:IPM>2.0.CO;2-M
p. 1117-1132

Donald G. Saari

It is shown that if an iterative price mechanism depends only upon a finite amount of information from the market as given by the aggregate excess demand function, then this mechanism cannot always be effective. That is, there are pure exchange economies where this mechanism will not find a price equilibrium. This statement already holds in the case of two commodities. The approach used to reach this conclusion extends to other iterative systems used to determine the zeros of a function.

Log In To View Full Content