TY - UNPD A1 - Orphanides, Athanasios A1 - Wieland, Volker T1 - Complexity and monetary policy : [Version August 10, 2012] T2 - Center for Financial Studies (Frankfurt am Main): CFS working paper series ; No. 2012,11 N2 - The complexity resulting from intertwined uncertainties regarding model misspecification and mismeasurement of the state of the economy defines the monetary policy landscape. Using the euro area as laboratory this paper explores the design of robust policy guides aiming to maintain stability in the economy while recognizing this complexity. We document substantial output gap mismeasurement and make use of a new model data base to capture the evolution of model specification. A simple interest rate rule is employed to interpret ECB policy since 1999. An evaluation of alternative policy rules across 11 models of the euro area confirms the fragility of policy analysis optimized for any specific model and shows the merits of model averaging in policy design. Interestingly, a simple difference rule with the same coefficients on inflation and output growth as the one used to interpret ECB policy is quite robust as long as it responds to current outcomes of these variables. T3 - CFS working paper series - 2012, 11 KW - Financial Crisis KW - Complexity KW - Monetary Policy KW - Model Uncertainty KW - Robust Simple Rules KW - ECB Y1 - 2012 UR - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/27254 UR - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-272544 IS - Version August 10, 2012 PB - CFS CY - Frankfurt, Main ER -