This paper estimates a dynamic, structural model of entry and exit in an oligopolistic industry and uses it to quantify …. Entry costs faced by potential entrants, fixed costs faced by incumbent producers, and the toughness of short-run price … competition are all found to be important determinants of long-run firm values, firm turnover, and market structure. Estimates for …

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

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. …

trends, markup trends, and the effects of mergers does not actually show a widespread decline in competition. Nor does it … observed changes in many industries are likely to reflect competition in action. We highlight research that points to targeted … interventions that can enable antitrust enforcement policy to better promote and protect competition. Throughout the paper, we …

that enhanced product-market competition between banks eroded worker rents. In contrast to theories predicting that … increased competition will lower the racial wage gap, we find that deregulation increased the wage gap between black and white … explained by increased product market competition, changes in technology, or enhanced market power …