welfare effects of entry into residential local telephone service in New York State using household-level data from September …

In this paper, we evaluate the consumer welfare effects of entry into residential local phone service in New York State … first quarter of 2003. Our results indicate that as a result of entry households that subscribe to one of the entrants … nature of the data, we decompose the households' overall gains from entry and find that benefits due to firm differentiation …

affected the incidence of HIV. Using a natural experiment setup, we identify the effects of Craigslist's entry on HIV trends by …'s entry leads to a 19.8 percent increase in HIV cases, which maps out to an average of 158.7 cases for a state in a year. The …. The increases in HIV cases as a result of Craigslist entry are estimated to impose treatment costs of over $118 million …

We consider some two dynamic models of entry in mobile telephony, with and without strategic pricing, and taking into … account market penetration at entry, locked-in consumers and tariff-mediated network externalities. We show that on …/off-net differentials may reduce the possibility of entry if incumbents are large, while they have no long-run effects if there are no …

, rarely have economists been able to examine how competition changes with the threat of entry. This paper uses the evolution … firm adjusts its entry strategy when facing the threat of additional entrants. We identify the potential entrant into a … that such a market is more likely to accommodate more than firms in the long run. Taking account of endogeneity of entry …

presence of network externalities tends to make the entrepreneur prefer sale to entry. Moreover, we also show that the … incentive to innovate for entry decreases when network effects become stronger, whereas there is an increase in the incentive … of increasing entry by entrepreneurs. However, this may come at the cost of reducing the research intensity by reducing …