Jean Tirole

Bio: Jean Tirole is an academic researcher from University of Toulouse. The author has contributed to research in topics: Market liquidity & Competition (economics). The author has an hindex of 134, co-authored 439 publications receiving 103279 citations. Previous affiliations of Jean Tirole include Centre national de la recherche scientifique & École des ponts ParisTech.

The Theory of Industrial Organization

Abstract: The Theory of Industrial Organization is the first primary text to treat the new industrial organization at the advanced-undergraduate and graduate level Rigorously analytical and filled with exercises coded to indicate level of difficulty, it provides a unified and modern treatment of the field with accessible models that are simplified to highlight robust economic ideas while working at an intuitive level To aid students at different levels, each chapter is divided into a main text and supplementary section containing more advanced material Each chapter opens with elementary models and builds on this base to incorporate current research in a coherent synthesis Tirole begins with a background discussion of the theory of the firm In part I he develops the modern theory of monopoly, addressing single product and multi product pricing, static and intertemporal price discrimination, quality choice, reputation, and vertical restraints In part II, Tirole takes up strategic interaction between firms, starting with a novel treatment of the Bertrand-Cournot interdependent pricing problem He studies how capacity constraints, repeated interaction, product positioning, advertising, and asymmetric information affect competition or tacit collusion He then develops topics having to do with long term competition, including barriers to entry, contestability, exit, and research and development He concludes with a "game theory user's manual" and a section of review exercises

Financial Intermediation, Loanable Funds, and The Real Sector

Abstract: We study an incentive model of financial intermediation in which firms as well as intermediaries are capital constrained. We analyze how the distribution of wealth across firms, intermediaries, and uninformed investors affects investment, interest rates, and the intensity of monitoring. We show that all forms of capital tightening (a credit crunch, a collateral squeeze, or a savings squeeze) hit poorly capitalized firms the hardest, but that interest rate effects and the intensity of monitoring will depend on relative changes in the various components of capital. The predictions of the model are broadly consistent with the lending patterns observed during the recent financial crises. I. INTRODUCTION During the late 1980s and early 1990s several OECD countries appeared to be suffering from a credit crunch. Higher interest rates reduced cash flows and pushed down asset prices, weakening the balance sheets of firms. Loan losses and lower asset prices (particularly in real estate) ate significantly into the equity of the banking sector, causing banks to pull back on their lending and to increase interest rate spreads. The credit crunch hit small, collateral-poor firms the hardest. Larger firms were less affected as they could either renegotiate their loans or go directly to the commercial paper or bond markets. Scandinavia seems to have been most severely hit by the credit crunch. The banking sectors of Sweden, Norway, and Finland all had to be rescued by their governments at a very high

A Theory of Incentives in Procurement and Regulation

Abstract: More then just a textbook, A Theory of Incentives in Procurement and Regulation will guide economists' research on regulation for years to come. It makes a difficult and large literature of the new regulatory economics accessible to the average graduate student, while offering insights into the theoretical ideas and stratagems not available elsewhere. Based on their pathbreaking work in the application of principal-agent theory to questions of regulation, Laffont and Tirole develop a synthetic approach, with a particular, though not exclusive, focus on the regulation of natural monopolies such as military contractors, utility companies, and transportation authorities. The book's clear and logical organization begins with an introduction that summarizes regulatory practices, recounts the history of thought that led to the emergence of the new regulatory economics, sets up the basic structure of the model, and previews the economic questions tackled in the next seventeen chapters. The structure of the model developed in the introductory chapter remains the same throughout subsequent chapters, ensuring both stability and consistency. The concluding chapter discusses important areas for future work in regulatory economics. Each chapter opens with a discussion of the economic issues, an informal description of the applicable model, and an overview of the results and intuition. It then develops the formal analysis, including sufficient explanations for those with little training in information economics or game theory. Bibliographic notes provide a historical perspective of developments in the area and a description of complementary research. Detailed proofs are given of all major conclusions, making the book valuable as a source of modern research techniques. There is a large set of review problems at the end of the book.

Platform competition in two‐sided markets

Abstract: Many if not most markets with network externalities are two-sided. To succeed, platforms in industries such as software, portals and media, payment systems and the Internet, must “get both sides of the market on board.” Accordingly, platforms devote much attention to their business model, that is, to how they court each side while making money overall. This paper builds a model of platform competition with two-sided markets. It unveils the determinants of price allocation and end-user surplus for different governance structures (profit-maximizing platforms and not-for-profit joint undertakings), and compares the outcomes with those under an integrated monopolist and a Ramsey planner. (JEL: L5, L82, L86, L96)

Intrinsic and Extrinsic Motivation

Abstract: A central tenet of economics is that individuals respond to incentives. For psychologists and sociologists, in contrast, rewards and punishments are often counterproductive, because they undermine "intrinsic motivation". We reconcile these two views, showing how performance incentives offered by an informed principal (manager, teacher, parent) can adversely impact an agent's (worker, child) perception of the task, or of his own abilities. Incentives are then only weak reinforcers in the short run, and negative reinforcers in the long run. We also study the effects of empowerment, help and excuses on motivation, as well as situations of ego bashing reflecting a battle for dominance within a relationship.

A Survey of Corporate Governance

Abstract: This paper surveys research on corporate governance, with special attention to the importance of legal protection of investors and of ownership concentration in corporate governance systems around the world.

A Survey of Corporate Governance

Abstract: This article surveys research on corporate governance, with special attention to the importance of legal protection of investors and of ownership concentration in corporate governance systems around the world. CORPORATE GOVERNANCE DEALS WITH the ways in which suppliers of finance to corporations assure themselves of getting a return on their investment. How do the suppliers of finance get managers to return some of the profits to them? How do they make sure that managers do not steal the capital they supply or invest it in bad projects? How do suppliers of finance control managers? At first glance, it is not entirely obvious why the suppliers of capital get anything back. After all, they part with their money, and have little to contribute to the enterprise afterward. The professional managers or entrepreneurs who run the firms might as well abscond with the money. Although they sometimes do, usually they do not. Most advanced market economies have solved the problem of corporate governance at least reasonably well, in that they have assured the flows of enormous amounts of capital to firms, and actual repatriation of profits to the providers of finance. But this does not imply that they have solved the corporate governance problem perfectly, or that the corporate governance mechanisms cannot be improved. In fact, the subject of corporate governance is of enormous practical impor

A Course in Game Theory

Abstract: A Course in Game Theory presents the main ideas of game theory at a level suitable for graduate students and advanced undergraduates, emphasizing the theory's foundations and interpretations of its basic concepts. The authors provide precise definitions and full proofs of results, sacrificing generalities and limiting the scope of the material in order to do so. The text is organized in four parts: strategic games, extensive games with perfect information, extensive games with imperfect information, and coalitional games. It includes over 100 exercises.

Financial Dependence and Growth

Abstract: Does finance affect economic growth? A number of studies have identified a positive correlation between the level of development of a country's financial sector and the rate of growth of its per capita income. As has been noted elsewhere, the observed correlation does not necessarily imply a causal relationship. This paper examines whether financial development facilitates economic growth by scrutinizing one rationale for such a relationship; that financial development reduces the costs of external finance to firms. Specifically, we ask whether industrial sectors that are relatively more in need of external finance develop disproportionately faster in countries with more developed financial markets. We find this to be true in a large sample of countries over the 1980s. We show this result is unlikely to be driven by omitted variables, outliers, or reverse causality.