accelerator model, time varying risk shocks, and a zero lower bound on the nominal interest rate. The amplification mechanism … results from a portfolio re-balancing from households, who reduce capital investment in favor of risk-free bonds. Consequently …

observed variables. Shock decompositions of the output and the inflation rate revealed the driving forces of the business …

, or "uncertainty shocks", are an important model ingredient. First, they account for countercyclical movements in risk … changes in both risk-premia and expected future real rates, uncertainty shocks account for about 1/2 of the variance of long …