Stand in the wind: Market power reformation during uncertain periods

Economic policy uncertainty affects firm dynamics and profitability, and thus imposes an impact on firm markups and market power. Using quarterly data of the U.S. publicly listed firms over 1985Q1 to 2020Q3, this paper empirically shows a decline of firm markups under an uncertain environment. However, the decrease in average markup does not necessarily imply an increase in market competition due to the heterogeneous effects amo...