Kostas Mavromatis

We show that in a heterogeneous economy, optimal policy after cost-push shocks raises short-term rates to curb inflation while lowering long-term rates to support indebted households, speeding investment and output recovery while increasing consumption inequality.

We introduce behavioral learning equilibria (BLE) into DSGE models with boundedly rational agents using simple but optimal first order autoregressive forecasting rules. The Smets-Wouters DSGE model with BLE is estimated and fits well with inflation survey expectations. As a policy application, we show that learning requires a lower degree of interest rate smoothing.

How should a central bank conduct quantitative easing (QE) in a monetary union when regions differ in their size and portfolio characteristics? Optimal QE policy suggests allocating greater purchases from the region that faces stronger portfolio frictions, and not necessarily according to each region’s size.