| Popis: |
Due to its impact on nominal firm profits, price rigidity amplifies the response of entry and exit to adverse supply shocks, such as COVID-19. This “entry-exit multiplier” triggers substantial magnification of the welfare losses due to negative supply shocks—even in an efficient-entry benchmark. In addition to those second-order effects, price rigidity also induces first-order amplification under external returns, when entry is no longer efficient. Endogenous entry-exit thus radically changes the consequences of nominal rigidities: in addition to the aggregate-demand amplification of supply disruptions, it also reconciles the response of hours worked across the benchmark New Keynesian and RBC models. |
