The effect of the market-based monetary policy transparency index on inflation and output variability

This paper examines empirically the effectiveness of the Federal Reserve's policy under different levels of transparency by using a dynamic and continuous market-based index proposed by Kia (2011) on inflation volatility and output volatility. In theory, the more transparent the monetary policy, the less volatile the money market will be with fewer disturbances and thus the more stable will be the economy. First, a bivariate VAR-BEKK-GARCH(1,1) model is estimated for inflation and output variables in the US economy in order to produce conditional variances and covariance over the period October 1982 to December 2011. Second, by incorporating conditional variances and transparency in a VAR model, impulse response functions reveal that after a positive shock in the Federal Reserve's transparency (i.e. market participants consider the Federal Reserve's actions to be more transparent), there is a statistically significant decrease in both inflation volatility and output volatility. Our results reveal the dynamic and crucial role that a central bank's transparency plays in retaining economic stability and assuring the forecasts concerning inflation and economic growth made by the economic units.