TY - JOUR AU - Sargent,Thomas AU - Williams,Noah AU - Zha,Tao TI - The Conquest of South American Inflation JF - National Bureau of Economic Research Working Paper Series VL - No. 12606 PY - 2006 Y2 - October 2006 UR - http://www.nber.org/papers/w12606 L1 - http://www.nber.org/papers/w12606.pdf N1 - Author contact info: Thomas J. Sargent Department of Economics New York University 19 W. 4th Street, 6th Floor New York, NY 10012 Tel: 612/373-4383 Fax: 650/723-1687 E-Mail: thomas.sargent@nyu.edu Noah M. Williams Department of Economics 1180 Observatory Drive University of Wisconsin Madison, WI 53706-1393 Tel: 608/263-3864 E-Mail: nmwilliams@wisc.edu Tao Zha Emory University 1602 Fishburne Drive Atlanta, GA 30322-2240 Tel: 404/723-3254 Fax: 404/727-4639 E-Mail: tzha@emory.edu M3 - presented at "SI 2006 ME call for papers", July 10-14, 2006 AB - We infer determinants of Latin American hyperinflations and stabilizations by using the method of maximum likelihood to estimate a hidden Markov model that potentially assigns roles both to fundamentals in the form of government deficits that are financed by money creation and to destabilizing expectations dynamics that can occasionally divorce inflation from fundamentals. Our maximum likelihood estimates allow us to interpret observed inflation rates in terms of variations in the deficits, sequences of shocks that trigger temporary episodes of expectations driven hyperinflations, and occasional superficial reforms that cut inflation without reforming deficits. Our estimates also allow us to infer the deficit adjustments that seem to have permanently stabilized inflation processes. ER -