The key insight from this analysis is that monetary policy should be responding more to negative shocks than positive shocks: optimal monetary policy is asymmetric. Moreover, if we take the stance that asset prices indicate a high cost of exposure to long-run risks, this has very interesting...

We empirically document that serial uncertainty shocks are (1) common in the data and (2) have an increasingly stronger impact on the macroeconomy. In other words, a series of bad (positive) uncertainty shocks exacerbates the economic decline significantly. From a theoretical perspective, these...