Jean-Charles Rochet

Continuous-Time Models in Corporate Finance synthesizes four decades of research to show how stochastic calculus can be used in corporate finance. Combining mathematical rigor with economic intuition, Santiago Moreno-Bromberg and Jean-Charles Rochet analyze corporate decisions such as dividend distribution, the issuance of securities, and capital structure and default. They pay particular attention to financial intermediaries, including banks and insurance companies. The authors begin by recalling the ways that option-pricing techniques can be employed for the pricing of corporate debt and equity. They then present the dynamic model of the trade-off between taxes and bankruptcy costs and derive implications for optimal capital structure. The core chapter introduces the workhorse liquidity-management model--where liquidity and risk management decisions are made in order to minimize the costs of external finance. This model is used to study corporate finance decisions and specific features of banks and insurance companies. The book concludes by presenting the dynamic agency model, where financial frictions stem from the lack of interest alignment between a firm's manager and its financiers. The appendix contains an overview of the main mathematical tools used throughout the book. Requiring some familiarity with stochastic calculus methods, Continuous-Time Models in Corporate Finance will be useful for students, researchers, and professionals who want to develop dynamic models of firms' financial decisions.

In the 1990s, large insurance companies failed in virtually every major market, prompting a fierce and ongoing debate about how to better protect policyholders. Drawing lessons from the failures of four insurance companies, When Insurers Go Bust dramatically advances this debate by arguing that the current approach to insurance regulation should be replaced with mechanisms that replicate the governance of non-financial firms. Rather than immediately addressing the minutiae of supervision, Guillaume Plantin and Jean-Charles Rochet first identify a fundamental economic rationale for supervising the solvency of insurance companies: policyholders are the "bankers" of insurance companies. But because policyholders are too dispersed to effectively monitor insurers, it might be efficient to delegate monitoring to an institution--a prudential authority. Applying recent developments in corporate finance theory and the economic theory of organizations, the authors describe in practical terms how such authorities could be created and given the incentives to behave exactly like bankers behave toward borrowers, as "tough" claimholders.

The financial crisis that began in 2007 in the United States swept the world, producing substantial bank failures and forcing unprecedented state aid for the crippled global financial system. Bringing together three leading financial economists to provide an international perspective, Balancing the Banks draws critical lessons from the causes of the crisis and proposes important regulatory reforms, including sound guidelines for the ways in which distressed banks might be dealt with in the future. While some recent policy moves go in the right direction, others, the book argues, are not sufficient to prevent another crisis. The authors show the necessity of an adaptive prudential regulatory system that can better address financial innovation. Stressing the numerous and complex challenges faced by politicians, finance professionals, and regulators, and calling for reinforced international coordination (for example, in the treatment of distressed banks), the authors put forth a number of principles to deal with issues regarding the economic incentives of financial institutions, the impact of economic shocks, and the role of political constraints. Offering a global perspective, Balancing the Banks should be read by anyone concerned with solving the current crisis and preventing another such calamity in the future.

The subprime crisis has shown that the sophisticated risk management models used by banks and insurance companies had serious flaws. Some people even suggest that these models are completely useless. Others claim that the crisis was just an unpredictable accident that was largely amplified by the lack of expertise and even naivety of many investors. This book takes the middle view. It shows that these models have been designed for "tranquil times", when financial markets behave smoothly and efficiently. However, we are living in more and more "turbulent times": large risks materialize much more often than predicted by "normal" models, financial models periodically go through bubbles and crashes. Moreover, financial risks result from the decisions of economic actors who can have incentives to take excessive risks, especially when their remunerations are ill designed. The book provides a clear account of the fundamental hypotheses underlying the most popular models of risk management and show that these hypotheses are flawed. However it shows that simple models can still be useful, provided they are well understood and used with caution.

The financial crisis that began in 2007 in the United States swept the world, producing substantial bank failures and forcing unprecedented state aid for the crippled global financial system. Bringing together three leading financial economists to provide an international perspective, Balancing the Banks draws critical lessons from the causes of the crisis and proposes important regulatory reforms, including sound guidelines for the ways in which distressed banks might be dealt with in the future. While some recent policy moves go in the right direction, others, the book argues, are not sufficient to prevent another crisis. The authors show the necessity of an adaptive prudential regulatory system that can better address financial innovation. Stressing the numerous and complex challenges faced by politicians, finance professionals, and regulators, and calling for reinforced international coordination (for example, in the treatment of distressed banks), the authors put forth a number of principles to deal with issues regarding the economic incentives of financial institutions, the impact of economic shocks, and the role of political constraints. Offering a global perspective, Balancing the Banks should be read by anyone concerned with solving the current crisis and preventing another such calamity in the future.

The second edition of an essential text on the microeconomic foundations of banking surveys the latest research in banking theory, with new material that covers recent developments in the field. Over the last thirty years, a new paradigm in banking theory has overturned economists' traditional vision of the banking sector. The asymmetric information model, extremely powerful in many areas of economic theory, has proven useful in banking theory both for explaining the role of banks in the economy and for pointing out structural weaknesses in the banking sector that may justify government intervention. In the past, banking courses in most doctoral programs in economics, business, or finance focused either on management or monetary issues and their macroeconomic consequences; a microeconomic theory of banking did not exist because the Arrow-Debreu general equilibrium model of complete contingent markets (the standard reference at the time) was unable to explain the role of banks in the economy. This text provides students with a guide to the microeconomic theory of banking that has emerged since then, examining the main issues and offering the necessary tools for understanding how they have been modeled. This second edition covers the recent dramatic developments in academic research on the microeconomics of banking, with a focus on four important topics: the theory of two-sided markets and its implications for the payment card industry; "non-price competition" and its effect on the competition-stability tradeoff and the entry of new banks; the transmission of monetary policy and the effect on the functioning of the credit market of capital requirements for banks; and the theoretical foundations of banking regulation, which have been clarified, although recent developments in risk modeling have not yet led to a significant parallel development of economic modeling. Praise for the first edition:"The book is a major contribution to the literature on the theory of banking and intermediation. It brings together and synthesizes a broad range of material in an accessible way. I recommend it to all serious scholars and students of the subject. The authors are to be congratulated on a superb achievement."-Franklin Allen, Nippon Life Professor of Finance and Economics, Wharton School, University of Pennsylvania"This book provides the first comprehensive treatment of the microeconomics of banking. It gives an impressive synthesis of an enormous body of research developed over the last twenty years. It is clearly written and apleasure to read. What I found particularly useful is the great effort that Xavier Freixas and Jean-Charles Rochet have taken to systematically integrate the theory of financial intermediation into classical microeconomics and finance theory. This book is likely to become essential reading for all graduate students in economics, business, and finance."-Patrick Bolton, Barbara and David Zalaznick Professor of Business, Columbia University Graduate School of Business"The authors have provided an extremely thorough and up-to-date survey of microeconomic theories of financial intermediation. This work manages to be both rigorous and pleasant to read. Such a book was long overdue and shouldbe required reading for anybody interested in the economics of banking and finance."-Mathias Dewatripont, Professor of Economics, ECARES, Universit

Almost every country in the world has sophisticated systems to prevent banking crises. Yet such crises--and the massive financial and social damage they can cause--remain common throughout the world. Does deposit insurance encourage depositors and bankers to take excessive risks? Are banking regulations poorly designed? Or are banking regulators incompetent? Jean-Charles Rochet, one of the world's leading authorities on banking regulation, argues that the answer in each case is "no." In Why Are There So Many Banking Crises?, he makes the case that, although many banking crises are precipitated by financial deregulation and globalization, political interference often causes--and almost always exacerbates--banking crises. If, for example, political authorities are allowed to pressure banking regulators into bailing out banks that should be allowed to fail, then regulation will lack credibility and market discipline won't work. Only by insuring the independence of banking regulators, Rochet says, can market forces work and banking crises be prevented and minimized. In this important collection of essays, Rochet examines the causes of banking crises around the world in recent decades, focusing on the lender of last resort; prudential regulation and the management of risk; and solvency regulations. His proposals for reforms that could limit the frequency and severity of banking crises should interest a wide range of academic economists and those working for central and private banks and financial services authorities.

In the 1990s, large insurance companies failed in virtually every major market, prompting a fierce and ongoing debate about how to better protect policyholders. Drawing lessons from the failures of four insurance companies, When Insurers Go Bust dramatically advances this debate by arguing that the current approach to insurance regulation should be replaced with mechanisms that replicate the governance of non-financial firms. Rather than immediately addressing the minutiae of supervision, Guillaume Plantin and Jean-Charles Rochet first identify a fundamental economic rationale for supervising the solvency of insurance companies: policyholders are the "bankers" of insurance companies. But because policyholders are too dispersed to effectively monitor insurers, it might be efficient to delegate monitoring to an institution--a prudential authority. Applying recent developments in corporate finance theory and the economic theory of organizations, the authors describe in practical terms how such authorities could be created and given the incentives to behave exactly like bankers behave toward borrowers, as "tough" claimholders.