TY - JOUR AU - Jeanne,Olivier AU - Korinek,Anton TI - Managing Credit Booms and Busts: A Pigouvian Taxation Approach JF - National Bureau of Economic Research Working Paper Series VL - No. 16377 PY - 2010 Y2 - September 2010 UR - http://www.nber.org/papers/w16377 L1 - http://www.nber.org/papers/w16377.pdf N1 - Author contact info: Olivier Jeanne Department of Economics Johns Hopkins University 454 Mergenthaler Hall 3400 N. Charles Street Baltimore, MD 21218 Tel: 410/516-7604 Fax: 410/516-7600 E-Mail: ojeanne@jhu.edu Anton Korinek Tydings Hall 4118F Department of Economics University of Maryland College Park, MD 20742 Tel: (917) 543-5237 E-Mail: anton@korinek.com AB - We study a dynamic model in which the interaction between debt accumulation and asset prices magnifies credit booms and busts. We find that borrowers do not internalize these feedback effects and therefore suffer from excessively large booms and busts in both credit flows and asset prices. We show that a Pigouvian tax on borrowing may induce borrowers to internalize these externalities and increase welfare. We calibrate the model by reference to (i) the US small and medium-sized enterprise sector and (ii) the household sector, and find the optimal tax to be countercyclical in both cases, dropping to zero in busts and rising to approximately half a percentage point of the amount of debt outstanding during booms. ER -