In this paper we investigate the sources of the important shifts in the volatility of U.S. macroeconomic variables in the postwar period. To this end, we propose the estimation of DSGE models allowing for time variation in the volatility of the structural innovations. We apply our estimation...

Disturbances affecting agents' intertemporal substitution are the key driving force of macroeconomic fluctuations. We reach this conclusion exploiting the asset pricing implications of an estimated general equilibrium model of the U.S. business cycle with a rich set of real and nominal frictions

This paper evaluates whether an estimated, structural, small open economy model of the Canadian economy can account for the substantial influence of foreign-sourced disturbances identified in numerous reduced-form studies. The analysis shows that the benchmark model --- and a number of variants...