This article studies the design of optimal mechanisms to regulate entry in natural oligopoly markets, assuming the … that these mechanisms generally avoid budget deficits and prevent excessive entry. …

We test for the distributional effects of regulation and entry in the mobile telecommunications sector in a highly … mobile termination rate regulation. We find that regulation benefits consumers significantly more than entry does, and that …. Next, we use a demand and supply equilibrium framework to simulate prices and the distribution of welfare without entry and …

We consider the regulation of a monopoly facing consumers that may evade payments, an important issue in public …

entry into local markets by: (i) alternative operators using wholesale access to the legacy copper network via local loop … of LLU competitors, and hence a less concentrated local market, has a positive impact on entry by fiber operators … choose to upgrade copper lines instead of investing in fiber networks. We use the estimates to calculate entry thresholds …

understand this recent rise in NGO activism, we develop a theory of optimal regulation in which a regulated industry seeks to … undertake a project that may be harmful to society. On the one hand, public regulation is vulnerable to the influence of the …

We evaluate the welfare effects of the Roam-Like-At-Home regulation, which drastically re-duced the price of accessing … impact of the regulation on different user segments. We estimate that around half of the gains stem from a reduction in … deadweight loss, i.e., new users accessing the mobile internet. We further show that the impact of the regulation varies with …

We empirically assess the impact of the EU roaming regulation on mobile operators' average revenues per user (ARPU) and …-level data we find that the regulation decreased mobile operator's revenues per user, while it had no impact on tariffs during … the latest phase of the regulation. …

nondiscrimination regulation that forces the ISP to provide an equal quality upgrade to both CPs, however, can reduce the ISP …

selectiion. We show why market entry for flatrate firms is difficult under a linear wholesale tariff. With both a linear and a …