Bonfiglioli, Alessandra; Crinò, Rosario; Gancia, Gino - 2021
We use transaction-level data to study changes in the concentration of US imports. Concentration has fallen in the … typical industry, while it is stable by industry and origin country. The fall in concentration is driven by the extensive … firms within country are diverging. Finally, higher concentration from an origin country is associated with a fall in prices …