The Arrow-Debreu paradigm faced with modern theories of contracting - a discussion of selected issues involving information and time, Roger Guesnerie; on the new institutional economics, Steven N.S. Cheung; legal contract theories and incomplete contracts, Alan Schwartz; understanding the structure of village and regional economies, Robert M. Townsend; contracts and incentives - defining the self-enforcing range of contractual performance, Benjamin Klein; contracts and the market for executives, Sherwin Rosen; financial intermediation, equilibrium credit rationing and business cycles, Hans Wijkander; specific and general knowledge and organizational structure, Michael C. Jensen and William H. Meckling; contract theory and macroeconomic fluctuations, Joseph E. Stiglitz.