concentration indexes for 4-digit manufacturing sectors. We find both significant markups and significant concentration across most … sectors. We compare computed markups and concentration with early estimates in South Africa and with other international … benchmark countries. We then examine the market structure based on the concentration, firms' size, and entry and exit dynamics …

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 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 …

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. …

This paper studies industrial concentration in Indian manufacturing sectors over the period 1970 to 1999. Given that … shaped by government policy. Deregulation after 1985 allowed greater scope for competitive processes, so that concentration … whole, concentration levels were indeed more significantly related to industry characteristics after deregulation. However …