TY - JOUR AU - Calvo,Guillermo AU - Celasun,Oya AU - Kumhof,Michael TI - Inflation Inertia and Credible Disinflation - The Open Economy Case JF - National Bureau of Economic Research Working Paper Series VL - No. 9557 PY - 2003 Y2 - March 2003 UR - http://www.nber.org/papers/w9557 L1 - http://www.nber.org/papers/w9557.pdf N1 - Author contact info: Guillermo A. Calvo Columbia University School of International and Public Affairs 420 West 118th St, Room 1303B MC3332 New York, NY 10027 Tel: 212/854-4264 E-Mail: gc2286@columbia.edu oya celasun E-Mail: ocelasun@imf.org Michael Kumhof Research Department, IMF Modelling Division, Room 9-548E 700 19th Street, NW Washington, DC 20008 Tel: 202-623-6769 Fax: 202-623-6334 E-Mail: mkumhof@imf.org AB - This paper develops a model of inflation inertia based on optimizing forward looking staggered price setting in a small open economy. Unlike in current models of sticky prices, transitions to a lower steady state inflation rate take time even if they are fully credible, and they are associated with significant output losses. There is a welfare trade-off between these output losses and the gains from smaller inflationary distortions. For reasonable parameter values inflation stabilization improves welfare. The optimal steady state is reached at the Friedman rule. Technical appendices are available at www.nber.org/data-appendix/w9557/ inert-techapp.pdf ER -