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Detecting Learning by Exporting

By Jan De Loecker

American Economic Journal: Microeconomics, August 2013

Learning by exporting refers to the mechanism whereby a firm's performance improves after entering export markets. This mechanism is often mentioned in policy documents, but many econometric studies have not found corroborating evidence. I show that th...

A Dual-Self Model of Impulse Control

By Drew Fudenberg and David K. Levine

American Economic Review, December 2006

We propose that a simple “dual-self” model gives a unified explanation for several empirical regularities, including the apparent time inconsistency that has motivated models of quasi-hyperbolic discounting and Rabin’s paradox of risk aversion in the...

Tackling the European Migration Problems

[Symposium: Immigration]

By Klaus F. Zimmermann

Journal of Economic Perspectives, Spring 1995

A fortress Europe immigration policy is currently observed throughout the European Union. The European migration problem seems to be that, in the face of high and persistent unemployment rates, additional immigration implies further unemployment. This mig...

Is the Obesity Epidemic a Public Health Problem? A Review of Zoltan J. Acs and Alan Lyles's Obesity, Business and Public Policy

By Tomas J. Philipson and Richard A. Posner

Journal of Economic Literature, December 2008

We review the recent but growing economic literature on the worldwide growth of obesity, relating the review to a recent anthology of articles—Obesity, Business and Public Policy. We discuss the competing explanations for the growth of obes...