Template-type: ReDif-Paper 1.0 Author-Name: Citanna,Alessandro Author-Name: Cres,Herve Author-Name: Dreze,Jacques Author-Name: Herings,P. Jean-Jacques Author-Name: Villanacci,Antonio Author-workplace-name: METEOR Title: Underemployment of Resources and Self-fulfilling Beliefs: Non-Walrasian Allocations at Walrasian Prices Abstract: In this paper the existence of unemployment is partly explained as being the result of coordination failures. It is shown that as a result of self-fulfilling pessimistic expectations, even at Walrasian prices, a continuum of equilibria results, among which an equilibrium with approximately no trade and a Walrasian equilibrium. These coordination failures also arise at other price systems, but then unemployment is the result of both a wrong price system and coordination failures. Some properties of the set of equilibria are analyzed. Generically, there exists a continuum of non-indifferent equilibrium allocations. Under a condition implied by gross substitutability, there exists a continuum of equilibrium allocations in the neighborhood of a competitive allocation, when prices are Walrasian. For a specialized economy, a dynamic illustration is offered. Keywords: mathematical economics and econometrics ; Series: Research Memoranda Creation-Date: 2001 Number: 003 File-URL: http://arno.unimaas.nl/show.cgi?fid=263 File-Format: application/pdf File-Size: 579540 Handle: RePEc:unm:umamet:2001003