TY - JOUR AU - Leeper,Eric M. AU - Zha,Tao TI - Modest Policy Interventions JF - National Bureau of Economic Research Working Paper Series VL - No. 9192 PY - 2002 Y2 - September 2002 UR - http://www.nber.org/papers/w9192 L1 - http://www.nber.org/papers/w9192.pdf N1 - Author contact info: Eric M. Leeper Department of Economics 304 Wylie Hall Indiana University Bloomington, IN 47405 Tel: 812/855-9157 Fax: NA E-Mail: eleeper@indiana.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 AB - We present a framework for computing and evaluating linear projections of macro variables conditional on hypothetical paths of monetary policy. A modest policy intervention is a change in policy that does not significantly shift agents' beliefs about policy regime and does not generate quantitatively important expectations-formation effects of the kind Lucas (1976) emphasizes. The framework is applied to an econometric model of U.S. postwar monetary policy behavior. It finds that a rich class of interventions routinely considered by the Federal Reserve are modest and their impacts can be reliably forecasted by an accurately identified linear model. Moreover, modest interventions can matter: they may shift the projected paths and probability distributions of macro variables in economically meaningful ways. ER -