A rapidly growing literature has shown that market concentration among domestic firms has increased in the United … measures of concentration, once adjusted for sales by foreign exporters, actually stayed constant between 1992 and 2012. We … reconcile these findings by linking part of the increase in domestic concentration to import competition. Although concentration …

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 country of origin. The fall in concentration is driven by the extensive … concentration among national producers. …

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 …

monopoly now features so prominently on the political and economic agenda. Mounting evidence shows that corporate concentration … stifles innovation and investment, resulting in lower-quality goods and services and less economic dynamism. Concentration is … people come to recognize the role of federal and state-level taxation in understanding corporate concentration in the US. Yet …

Recent evidence suggests the U.S. business environment is changing, with rising market concentration and markups. The …