Information, Strategy, and Public Policy

Book excerpt: In this volume, some of the world′s finest economists address a theme which is once again at the economic policy, namely the appropriate role for policy in a market economy. Can Adam Smith′s ′invisible hand′ mechanism be expected to allocate resources efficiently to meet the needs of society and is the role of government therefore limited at best? The authors draw on recent theoretical advances in the study of imperfect information and stratgic behavior to argue that the models of classical welfare economics are insufficient as a framework for understaning modern market economies The first two chapters by joseph Stiglitz and Frank Hahn represent assaults on the fundamental theorems of welfare economics: the notion of pareto-efficiency and the ability of the price mechanism to achieve it. Taking this as their lead, subsequent chapters focus on specific examples of market failure - the environment, the persistence of high levels of unemployment and the strategic behavior of governments in the making of international economic policy. The book represents a remarkable and accessible insight into the dilemmas of modern economics. It also demonstrates the fundamental role economic analysis has to play in the understanding of real problems and the formulation of appropriate policy.