This paper shows that increased volatility of Örm-level productivity can push the nominal interest rate to its lower bound with large amplification effects on macroeconomic aggregates. The framework combines a simple canonical Önancial accelerator model, time varying risk shocks, and a zero...

The literature has widely discussed the role of financial and economic uncertainty shocks for the macroeconomy. However, it has turned out to be difficult to isolate these shocks from financial market indicators and uncertainty proxies because any identifying restriction on their response...