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Ted C Bergstrom

Maximal elements

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Full-Text Articles in Social and Behavioral Sciences

When Non-Transitive Relations Take Maxima And Competitive Equilibria Can't Be Beat, Ted Bergstrom Jun 2003

When Non-Transitive Relations Take Maxima And Competitive Equilibria Can't Be Beat, Ted Bergstrom

Ted C Bergstrom

The paper generalizes theorems of Ky Fan and Hugo Sonnenschein on the existence of maximal elements for non-transitive relations. I used these results to show that a binary relation could be constructed whose maximal element must be a competitive equilibrium. Thus proving the existence of competitive equilibrium under somewhat more general conditions than had been done previously. In 1975, I thought this was a useful extension of the Gale Mas Collel existence theorem. Journal referees then didn't agree with me, so I let it ripen in my desk for 15 years. I still think it is worth looking at if …


The Existence Of Maximal Elements And Equilibria In The Absence Of Transitivity, Ted Bergstrom Aug 1975

The Existence Of Maximal Elements And Equilibria In The Absence Of Transitivity, Ted Bergstrom

Ted C Bergstrom

This paper generalizes results of Ky Fan and Hugo Sonnenschein on the existence of maximal elements for non-transitive binary relations. It proves a generalization of Nash's theorem on the existence of non-cooperative equilibrium. It also shows that existence of competitive equilibrium can be proved as a consequence of the existence of a maximal element for an appropriately chosen binary relation.