Econometrica: Jul 1962, Volume 30, Issue 3

A Theorem on Non-Tatonnement Stability

https://doi.org/0012-9682(196207)30:3<463:ATONS>2.0.CO;2-X
p. 463-469

Frank H. Hahn, Takashi Negishi

This paper investigates an adjustment process for a pure exchange economy out of equilibrium, when trading is allowed at non-equilibrium prices. The "trading rule" postulated is that if a good is in excess demand at the going prices then trading ensures that no one will hold more of that good than he desires and vice versa when there is excess supply. An example of this mechanism is provided. It is shown that the system approaches an equilibrium.

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