Template-Type: ReDIF-Paper 1.0 Author-Name: Flora Budianto Author-X-Name-First: Flora Author-X-Name-Last: Budianto Author-Name: Taisuke Nakata Author-X-Name-First: Taisuke Author-X-Name-Last: Nakata Author-Name: Sebastian Schmidt Author-X-Name-First: Sebastian Author-X-Name-Last: Schmidt Title: Average inflation targeting and the interest rate lower bound Abstract: Assigning a discretionary central bank a mandate to stabilize an average inflation rate - rather than a period-by-period inflation rate - increases welfare in a New Keynesian model with an occasionally binding lower bound on nominal interest rates. Under rational expectations, the welfare-maximizing averaging window is infinitely long, which means that optimal average inflation targeting (AIT) is equivalent to price level targeting (PLT). However, AIT with a finite, but sufficiently long, averaging window can attain most of the welfare gain from PLT. Under boundedly-rational expectations, if cognitive limitations are sufficiently strong, the optimal averaging window is finite, and the welfare gain of adopting AIT can be small. Length: 29 pages Creation-Date: 2020-04 File-URL: https://www.bis.org/publ/work852.pdf File-Format: Application/pdf File-Function: Full PDF document File-URL: https://www.bis.org/publ/work852.htm File-Format: text/html Number: 852 Classification-JEL: E31, E52, E58, E61, E71 Keywords: monetary policy objectives, makeup strategies, liquidity trap, deflationary bias, expectations Handle: RePEc:bis:biswps:852