In an influential paper, Baily (1978) showed that the optimal level of unemployment insurance (UI) in a stylized static model depends on only three parameters: risk aversion, the consumption-smoothing benefit of UI, and the elasticity of unemployment durations with respect to the benefit rate. This paper examines the key economic assumptions under which these parameters determine the optimal level of social insurance. A Baily-type expression, with an adjustment for precautionary saving motives, holds in a very general class of dynamic models subject to weak regularity conditions. For example, the simple reduced-form formula derived here applies with arbitrary borrowing constraints, endogenous insurance markets, and search and leisure benefits of unemployment. A counterintuitive aspect of this result is that the optimal benefit rate appears not to depend on (1) any benefit of UI besides consumption-smoothing or (2) the relative magnitudes of income and substitution effects in the link between UI benefits and durations. However, these parameters enter implicitly in the optimal benefit calculation, and estimating them can be useful in testing whether the values of the primary inputs are consistent with observed behavior.

The fields of insurance law and insurance economics have long and distinguished scholarly histories, but participants in the two disciplines have not always communicated well across academic silos. This Handbook encourages more policy-relevant insurance e

Designing a good unemployment insurance scheme is a delicate matter. In a system with no or little insurance, households may be subject to a high income risk, whereas excessively generous unemployment insurance systems are known to lead to high unemployment rates and are costly both from a fiscal perspective and for society as a whole. Andreas Pollak investigates what an optimal unemployment insurance system would look like, i.e. a system that constitutes the best possible compromise between income security and incentives to work. Using theoretical economic models and complex numerical simulations, he studies the effects of benefit levels and payment durations on unemployment and welfare. As the models allow for considerable heterogeneity of households, including a history-dependent labor productivity, it is possible to analyze how certain policies affect individuals in a specific age, wealth or skill group. The most important aspect of an unemployment insurance system turns out to be the benefits paid to the long-term unemployed. If this parameter is chosen too high, a large number of households may get caught in a long spell of unemployment with little chance of finding work again. Based on the predictions in these models, the so-called "Hartz IV" labor market reform recently adopted in Germany should have highly favorable effects on the unemployment rates and welfare in the long run.

In the Handbook of Public Economics, vol. 5, top scholars provide context and order to new research about mechanisms that underlie both public finance theories and applications. These fundamental subjects follow the recent, steady movement away from rational decision-making and toward more personalized approaches to tax generation and expenditure, especially in terms of the use of psychological methods and financial incentives. Closely scrutinized subjects include new research in empirical (instead of theoretical) public finance, the methods for measuring taxes (both in revenue generation and expenditure), and the roles that taxes play in specific settings, such as emerging economies, urban settings, charitable giving, and among political entities (cities, counties, states, countries). Contributors look at both the "tax" and "expenditure" sides of public finance, emphasizing recent influences that psychology and philosophy have exerted in economics with articles on behavioral finance, charitable giving, and dynamic taxation. To a field enjoying rapid growth, their articles bring context and order, illuminating the mechanisms that underlie both public finance theories and applications. - Editor Raj Chetty is the recipient of the 2013 John Bates Clark Medal from the American Economic Association - Focuses on new approaches to both revenue generation and expenditures in public finance - Presents coherent summaries of subjects in public economics that stretch from methodologies to applications - Makes details about public economics accessible to scholars in fields outside economics

ïIn this book, Simon Bowmaker offers a remarkable collection of conversations with leading economists about research in economics. He has selected a broad sample of the great economists of our time, including people whose perspectives span most of the major subdivisions of economics research, from micro to macro, from theoretical to empirical, from rationalist to behavioral.Í _ From the foreword by Roger B. Myerson, University of Chicago, US and 2007 Nobel Laureate in Economics ïThe Art and Practice of Economics Research is the book I wish I had when I was ñgrowing upî as an economist. For anyone who is or wants to be an economic researcher, or anyone just interested in how economics ñworksî, this is a terrific and inspirational resource.Í _ David K. Levine, Washington University in St. Louis, US ïIt is hard to imagine an economist in the world who would not enjoy this book. It is fascinating, gripping, and full of the wisdom imparted by age and by scholarly lifeÍs ups and downs.Í _ Andrew J. Oswald, University of Warwick, UK ïAlthough each has followed his or her own road, these scholars share a passion for economics and a commitment to the research enterprise. The best economists lie sleepless, gripped by their questions.Í _ Joshua Angrist, Massachusetts Institute of Technology, US ïThis is a wonderful book of interviews with some of the most respected economists in the world. It is full of insights into academic life, and clearly conveys the joy of doing economics research.Í _ Jon Levin, Stanford University, US ïThe relaxed frame of the interviews gives interested parties exciting insights into the thoughts and concerns of leading economists and might well inspire some of the best young minds to continue with economics in their later lives.Í _ Ernst Fehr, University of Zurich, Switzerland The Art and Practice of Economics Research provides an in-depth look into the research methods of leading economists from across the United States and Europe. This innovative volume contains 25 interviews with practicing economists, presenting insightful personal accounts into an often-misunderstood field. Contributors to this volume were asked to reflect on their own experience in economics research, including their methods of working, the process of scientific discovery and knowledge creation, and the challenges of successfully disseminating their work. The unique and compelling interview format showcases each contributorÍs personal connection to his or her work, presenting a view of current economics research that is technical, comprehensive, and refreshingly human. Both students and current scholars in economics will find much to admire in this bookÍs window into the inner workings of some of the brightest and best-known minds in the field. This volume would also make a great companion to the authorÍs 2010 book, The Heart of Teaching Economics, which showcases the personal experiences of teachers and professors of economics.

Models of Risk Preferences collects studies that critically review alternatives to Expected Utility Theory from the perspective of experimental economics.

This book examines unemployment insurance policy through a survey, taking stock of the theoretical work in the field of labor economics. It closely follows and assesses developments in the modelling of optimal unemployment insurance (UI) policies, beginning with the initial analytical findings produced in the second half of the 1970s. A main part of the survey is devoted to the two basic strands of analysis about, respectively, the optimal level of UI benefits and the optimal time profile of UI policy. The book has two different objectives. The first is to provide an essential summary of the individual models, with the intention of underscoring how a number of specific messages for the policy-maker can be derived from analytical constructions. It further emphasizes and comments on what the models deliver to UI policy-makers. The second objective is to stress the importance and extension of open questions in the field of the theoretical approach to the unemployment insurance issue. The survey discusses the multiplicity of heterogeneities of the labor world in particular as relevant for UI issues on the one side, and on the other hand, the independence of the two basic choices of UI policy, its meaning and its limits, and the possible forms of complementarity between these choices. The book is a must-read for researchers, students, and policy-makers interested in a better understanding of the field of labor economics in general, as well as unemployment insurance policies in particular.