reconcile these findings by linking part of the increase in domestic concentration to import competition. Although concentration … increase. We find that higher import competition caused a decline in the market shares of the top twenty U.S. firms. …

In this paper we study the impact of competition on the provision of quality in the US airline industry. Using changes … in competition triggered by LCC entry and airline mergers, we find that an increase in competition increases the … previous findings in the literature, our evidence suggests that an increase in competition unambiguously increases consumer …