Comparing monetary policy before and during crisis for Visegrad group countries

We focus on research of monetary policy mechanism of Visegrad group countries before and during crisis in this paper. Main objective of central banks function in V4 countries lies in maintaining price stability. For this purpose, inflation targeting regime is realized in a medium-term focus in V4, which means that there is a certain lag between a monetary policy operation and its influence on an inflation target. The monetary policy of each country can be described by suitable VAR model with appropriate variables. We suppose inflation, interbank interest rate and central bank key interest rate as appropriate variables. We would like to know if there is a continuity of the monetary policy before and after crisis in particular countries. We use one-dimensional and multi-dimensional calibration technique for this purpose. Based on estimated parameters of the one-dimensional calibration model with linear or quadratic calibration function, respectively, we can identify changes in monetary transmission in all countries during crisis. We can conclude on some similarities from estimated parameters of multi-dimensional calibration model, but not on the some transmission mechanism in all countries.