SUMMARYThis paper summarizes recent developments in the stabilization policy debate. The emphasis is on the controversy between two main classes of models, the equilibrium and the disequilibrium approach, which are both aiming at a consistent explanation of macroeconomic price and quantity behavior. The various models that have been proposed are placed into a coherent framework, and the source of their contradicting policy implications is explored. Empirical evidence cannot be expected to bring about a clearcut decision in favor of either paradigm. A more likely prospect is the development of a synthetic approach emerging from current research in the micro foundations of macroeconomics. (An english version of this article is available as Discussion Paper Nr. 61, Institut f¨r angewandte Wirtschaftsforschung, University of Basel.