Page, F.H. Jr.; Wooders, M.H.; Monteiro, P.K. - Department of Economics, University of Warwick - 1999
We introduce the concept of inconsequential arbitrage and, in the context of a model allowing short-sales and half-lines in indifference surfaces, we prove that inconsequential arbitrage is sufficient for existence of equilibrium. With a slightly stronger condition of local nonsatiation than...