Economics has much to do with incentives--not least, incentives to work hard, to produce quality products, to study, to invest, and to save. Although Adam Smith amply confirmed this more than two hundred years ago in his analysis of sharecropping contracts, only in recent decades has a theory begun to emerge to place the topic at the heart of economic thinking. In this book, Jean-Jacques Laffont and David Martimort present the most thorough yet accessible introduction to incentives theory to date. Central to this theory is a simple question as pivotal to modern-day management as it is to economics research: What makes people act in a particular way in an economic or business situation? In seeking an answer, the authors provide the methodological tools to design institutions that can ensure good incentives for economic agents.

This book focuses on the principal-agent model, the "simple" situation where a principal, or company, delegates a task to a single agent through a contract--the essence of management and contract theory. How does the owner or manager of a firm align the objectives of its various members to maximize profits? Following a brief historical overview showing how the problem of incentives has come to the fore in the past two centuries, the authors devote the bulk of their work to exploring principal-agent models and various extensions thereof in light of three types of information problems: adverse selection, moral hazard, and non-verifiability. Offering an unprecedented look at a subject vital to industrial organization, labor economics, and behavioral economics, this book is set to become the definitive resource for students, researchers, and others who might find themselves pondering what contracts, and the incentives they embody, are really all about.

Incentive theory is the most important development in economics in the last forty years. The principal-agent model is the core of this theory. This authoritative collection brings together the essential literature concerning the principal-agent model when no restrictions on the design of the principal's contract exist in terms of complexity, enforcement or rationality. Part I covers the foundations of the principal-agent theory from the first historical formulation of the problem to the first attempts to formalize it. Part II deals with the case of moral hazard and adverse selection is the topic of Part III. Part IV presents contributions on current research issues such as the impact of communication constraints, endogenous information structures and multidimensional incentive problems. The Principal Agent Model will be an indispensable reference source for all students, researchers and professionals specialising in this subject.

These three elegant essays develop principles central to the understanding of the diverse ways in which imperfect information affects the distribution of resources, incentives, and the evaluation of economic policy. The first concerns the special role that information plays in the allocation process when it is possible to improve accuracy through private investment. The common practice of hiring "experts" whose information is presumably much better than their clients' is analyzed. Issues of cooperative behavior when potential group members possess diverse pieces of information are addressed. Emphasis is placed on the adaptation of the "core" concept from game theory to the resource allocation model with differential information. The second essay deals with the extent to which agents can influence the random events they face. This is known as moral hazard, and in its presence there is a potential inefficiency in the economic system. Two special models are studied: the role of moral hazard in a monetary economy, and the role of an outside adjudicatory agency that has the power to enforce fines and compensation. The final essay discusses the problem of certainty equivalence in economic policy. Conditions under which a full stochastic optimization can be calculated by solving a related, much simpler "certainty equivalence" problem are developed. The reduction in the complexity of calculation involved is very great compared with the potential loss of efficiency.

Incentives and Political Economy constructs a normative approach to constitutional design using recent developments in contract theory. It treats political economy as the study of the incentive problems created by the delegation of economic policy to self-interested politicians. Politicians are treated successively as informed supervisors or residual decision-makers. The optimal constitutional responses to the activities of interest groups are characterized in various circumstances, as well as the optimal trade-off between flexibility of decision-making and discretion to pursue personal agendas when the incompleteness of the constitutional contract is recognized.

This book comprises the second volume of papers presented at the Sixth World congress of the Econometric Society in Barcelona in August 1990. With papers from the world's leading specialists, it gives the reader a unique survey of the most recent advances in economic theory.

These books comprise papers examining the latest developments in economic theory given at the Sixth World Congress of the Econometric Society in Barcelona in August 1990. They are the latest in a series of collections that cover the most active fields in economic theory over a five year period. With papers from the world's leading specialists, the books give the reader a unique survey of the most recent advances in economic theory.

In Regulation and Development Jean-Jacques Laffont provides the first theoretical analysis of regulation of public services for developing countries. He shows how the debate between price-cap regulation and cost of service regulation is affected by the characteristics of less developed countries (LDCs) and offers a positive theory of privatization that stresses the role of corruption. He develops a new theory of regulation with limited enforcement capabilities and discusses the delicate issue of access pricing in view of LDC's specificities. In the final chapter he proposes a theory of separation of powers which reveals one of the many vicious circles of underdevelopment made explicit by the economics of information. Based on organization theory and history, and using simple empirical tests wherever possible, Professor Laffont offers a comprehensive evaluation of the different ways to organize the regulatory institutions and opens up a rich new research agenda for development studies.