Monetary policy and earnings inequality: inflation dependencies

This paper studies the distributional effects of monetary policy and its dependence on inflation. We document a novel dependency in the earnings heterogeneity channel of monetary policy using high-frequency, administrative tax data from eurozone member Estonia. Monetary policy shocks substantially influence earnings inequality during high-inflation periods, with weaker effects during low-inflation periods. Extending our dataset with granular MPC estimates, we show that earnings heterogeneity amplifies the aggregate MPC and consumption response. In high-inflation periods, consumption and inequality respond more, even though the aggregate MPC may be lower. We rationalise our findings with a nonlinear tractable HANK model featuring inflation dependencies.