The roam-like-at-home regulation (RLAH) eliminated all mobile roaming surcharges to Eu-ropean consumers travelling … within the European Economic Area (EEA). We measure the causal impact of the regulation on EEA roaming traffic, using the … revenues. To evaluate the welfare effects of the regulation, we develop a framework that includes consumer surplus, retail and …

optimal regulation. We use the model to analyze an actual regulation of such a market by competition authorities in Finland … Ramsey regulation. While the Finnish regulation pushes the foreign fee downwards towards its socially optimal level, the … regulated fees are likely to remain too high from the welfare point of view. In contrast with the actual regulation, it would be …

The roam-like-at-home regulation (RLAH) eliminated all mobile roaming surcharges to Eu-ropean consumers travelling … within the European Economic Area (EEA). We measure the causal impact of the regulation on EEA roaming traffic, using the … revenues. To evaluate the welfare effects of the regulation, we develop a framework that includes consumer surplus, retail and …

We analyze how network regulation affects investment into network infrastructure and complementary services. While … regulation negatively affcets investment incentives in the regulated network market, the effects of network regulation on … infrastructure versus service quality. We also find constellations, where regulation can enhance perceived total quality. …

difficult to achieve at the same time. In this paper, we consider price regulation in the retail and wholesale market and answer … access price regulation is an effective instrument to make the entrant and consumers better off …

This paper provides a novel rationale for the regulation of market size when heterogeneous firms compete. A regulator …