The three major themes of János Kornai's work reflected in the title of this book--planning, shortage, and transition, or transformation--figure prominently in the essays. Aftera philosophical introduction by Edmond Malinvaud, the book is divided into three Marketsand Organizations, Theory of Transition, and The Transitional Experience. János Kornai is one of the world's leading experts on the economics of socialism and transition. An early advocate of reform in Hungary, he has written penetrating analyses of centrally planned economies and their transformation to market-oriented systems. This volume is being published in celebration of Kornai's seventieth birthday. Contributors : Abram Bergson, Sharad Bhandari, Bernard Chavance, Mathias Dewatripont, Jacques Drèze, Michael Ellman, Richard Ericson, István R. Gábor, Paul Hare, David M. Kemme, János Köllö, Georges Korsun, Mári Lackó, Marie Lavigne, Edmond Malinvaud, Béla Martos, Eric S. Maskin, Peter Murrell, Yingyi Qian, Richard Quandt, John Roemer, Gérard Roland, Jeffrey Sachs, András Simonovits, Robert Solow, Wim Swaan, Jörgen Weibull, Martin Weitzman, Wing Thye Woo, ChenggangXu.