Shopping Externalities and Self-Fulfilling Unemployment Fluctuations
NBER WORKING PAPER SERIES SHOPPING EXTERNALITIES AND SELF-FULFILLING UNEMPLOYMENT FLUCTUATIONS Greg Kaplan Guido Menzio Working Paper 18777 http://www.nber.org/papers/w18777 NATIONAL BUREAU OF ECONOMIC RESEARCH 1050 Massachusetts Avenue Cambridge, MA 02138 February 2013 We thank the Kielts-Nielsen Data Center at the University of Chicago Booth School of Business for providing access to the Kielts-Nielsen Consumer Panel Dataset. We thank the editor, Harald Uhlig, and three anonymous referees for insightful and detailed suggestions that helped us revising the paper. We are also grateful to Mark Aguiar, Jim Albrecht, Michele Boldrin, Russ Cooper, Ben Eden, Chris Edmond, Roger Farmer, Veronica Guerrieri, Bob Hall, Erik Hurst, Martin Schneider, Venky Venkateswaran, Susan Vroman, Steve Williamson and Randy Wright for many useful comments. The views expressed herein are those of the authors and do not necessarily reflect the views of the National Bureau of Economic Research. NBER working papers are circulated for discussion and comment purposes. They have not been peer- reviewed or been subject to the review by the NBER Board of Directors that accompanies official NBER publications. © 2013 by Greg Kaplan and Guido Menzio. All rights reserved. Short sections of text, not to exceed two paragraphs, may be quoted without explicit permission provided that full credit, including © notice, is given to the source. Shopping Externalities and Self-Fulfilling Unemployment Fluctuations Greg Kaplan and Guido Menzio NBER Working Paper No. 18777 February 2013, Revised October 2013 JEL No. D11,D21,D43,E32 ABSTRACT We propose a novel theory of self-fulfilling unemployment fluctuations. According to this theory, a firm hiring an additional worker creates positive external effects on other firms, as a worker has more income to spend and less time to search for low prices when he is employed than when he is unemployed.
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