Manresa, Antonio, 1954-2013-05-282013-05-2819981136-8365https://hdl.handle.net/2445/43811[eng] We consider a discrete time, pure exchange infinite horizon economy with two or more consumers and at least one concumption good per period. Within the framework of decentralized mechanisms, we show that for a given consumption trade at any period of time, say at time one, the consumers will need, in general, an infinite dimensional (informational) space to identigy such a trade as an intemporal Walrasian one. However, we show and characterize a set of enviroments where the Walrasian trades at each period of time can be achieved as the equilibrium trades of a sequence of decentralized competitive mechanisms, using only both current prices and quantities to coordinate decisions.18 p.application/pdfengcc-by-nc-nd, (c) Manresa, 1998http://creativecommons.org/licenses/by-nc-nd/3.0/EconometriaEquilibri (Economia)MicroeconomiaMacroeconomiaEconomia matemàticaEconometricsEquilibrium (Economics)MicroeconomicsMacroeconomicsMathematical economicsinfo:eu-repo/semantics/workingPaper2013-05-28info:eu-repo/semantics/openAccess