Chichilnisky, Graciela; Heal, Geoffrey - In: Economic Theory 12 (1998) 1, pp. 163-176
A single condition, limited arbitrage, is shown to be necessary and sufficient for the existence of a competitive equilibrium and the core in economies with any number of markets, finite or infinite, with or without short sales. This extends earlier results of Chichilnisky [8] for finite...