Equilibrium in a matching market with general preferences and a multi-item auction, Ahmet Alkan; general equilibrium with infinitely many goods - the case of separable utilities, Aloisio Araujo and P.K.Monteiro; regular demand with several, general budget constraints, Yves Balasko and David Cass; arbitrage opportunities in financial markets are not inconsistent with competitive equilibrium, Lawrence M. Benveniste and Juan Ketterer; fiscal and monetary policy in a general equilibrium model, Truman Bewley; equilibrium in preemption games with complete information, Ken Hendricks and Charles Wilson; allocation of aggregate and individual risks through financial markets, Michael J.P.Magill and Wayne J.Shafer; survival under production uncertainty, Mukul Majumdar and Roy Radner; equilibrium existence theory with possibly satiated preferences, Andreu Mas-Collel; on the existence of a stationary optimal stock for a multi-sector economy with a non-convex technology, Tapan Mitra; a note on optimal development in a multi-sector non-convex economy, Mukul Majumdar and Bazalel Peleg; a genuine Keynesian growth cycle, Hukukane Nikaido; on perfectly coalition-proof Nash equilibria, Bezalel Peleg; efficiency of marginal cost pricing equilibria, Martine Quinzii; a long-open question on utility and conserved-energy functions, Paul A. Samuelson; how (and when) to communicate with enemies, Joel Sobel; the multiple partners game, Marilda Sotomayor; Gale tales, William A.Brock.