Game Theory for Economic Analysis

Comprises lectures given at Tel Aviv University and Oxford University in 1990.

This book considers three relationships: law and economics; economics and game theory; and game theory and law. Economists teach lawyers that economic principles cut across and integrate seemingly different legal subjects such as contracts, torts, and property. Correspondingly, lawyers teach economists that legal rationality is a separate and distinct decision-making process that can be formalized by behavioral rules that are parallel to and comparable with the behavioral rules of economic rationality, that efficiency often must be constrained by legal goals such as equal protection of the laws, due process, and horizontal and distributional equity, and that the general case methodology of economics vs. the hard case methodology of law for determining the truth or falsity of economic theories and theorems sometimes conflict. Economics and Game Theory: Law and economics books focus on economic analysis of judges’ decisions in common law cases and have been mostly limited to contracts, torts, property, criminal law, and suit and settlement. There is usually no discussion of the many areas of law that require cooperative action such as is needed to provide economic infrastructure, control public “bad” type externalities, and make legislation. Game theory provides the bridge between competitive markets and the missing discussion of cooperative action in law and economics. How? Competitive markets are examples (subset) of the Prisoners’ Dilemma, which explains the conflict between individual self-interested behavior and cooperation both in economic markets and in legislative bodies and demonstrates the need for social infrastructure and regulation of pollution and global warming. Game Theory and Law: Lawsuits usually involve litigation between two parties, not the myriad participants in markets, so the assumption of self-interest constrained by markets does not carry over to legal disputes involving one-on-one bargaining in which the law gives one party superior bargaining power. Game theory models predict the effect of different legal institutions, rights, and rules on the outcome of such bargaining. Game theory also has a natural four-model framework which is used in this book to analyze the law and economics of civil obligation, which consists of torts (negligence), contracts, and unjust enrichment.

Mathematical economics and game theory approached with the fundamental mathematical toolbox of nonlinear functional analysis are the central themes of this text. Both optimization and equilibrium theories are covered in full detail. The book's central application is the fundamental economic problem of allocating scarce resources among competing agents, which leads to considerations of the interrelated applications in game theory and the theory of optimization. Mathematicians, mathematical economists, and operations research specialists will find that it provides a solid foundation in nonlinear functional analysis. This text begins by developing linear and convex analysis in the context of optimization theory. The treatment includes results on the existence and stability of solutions to optimization problems as well as an introduction to duality theory. The second part explores a number of topics in game theory and mathematical economics, including two-person games, which provide the framework to study theorems of nonlinear analysis. The text concludes with an introduction to non-linear analysis and optimal control theory, including an array of fixed point and subjectivity theorems that offer powerful tools in proving existence theorems.

This book presents the huge variety of current contributions of game theory to economics. The impressive contributions fall broadly into two categories. Some lay out in a jargon free manner a particular branch of the theory, the evolution of one of its concepts, or a problem, that runs through its development. Others are original pieces of work tha

An introduction to one of the most powerful tools in modern economics Game Theory for Applied Economists introduces one of the most powerful tools of modern economics to a wide audience: those who will later construct or consume game-theoretic models. Robert Gibbons addresses scholars in applied fields within economics who want a serious and thorough discussion of game theory but who may have found other works too abstract. Gibbons emphasizes the economic applications of the theory at least as much as the pure theory itself; formal arguments about abstract games play a minor role. The applications illustrate the process of model building—of translating an informal description of a multi-person decision situation into a formal game-theoretic problem to be analyzed. Also, the variety of applications shows that similar issues arise in different areas of economics, and that the same game-theoretic tools can be applied in each setting. In order to emphasize the broad potential scope of the theory, conventional applications from industrial organization have been largely replaced by applications from labor, macro, and other applied fields in economics. The book covers four classes of games, and four corresponding notions of equilibrium: static games of complete information and Nash equilibrium, dynamic games of complete information and subgame-perfect Nash equilibrium, static games of incomplete information and Bayesian Nash equilibrium, and dynamic games of incomplete information and perfect Bayesian equilibrium.

This is the classic work upon which modern-day game theory is based. What began as a modest proposal that a mathematician and an economist write a short paper together blossomed, when Princeton University Press published Theory of Games and Economic Behavior. In it, John von Neumann and Oskar Morgenstern conceived a groundbreaking mathematical theory of economic and social organization, based on a theory of games of strategy. Not only would this revolutionize economics, but the entirely new field of scientific inquiry it yielded--game theory--has since been widely used to analyze a host of real-world phenomena from arms races to optimal policy choices of presidential candidates, from vaccination policy to major league baseball salary negotiations. And it is today established throughout both the social sciences and a wide range of other sciences.