networks under various regimes of data roaming charge regulation. Given an induced externality of investments (spillovers) due … cost regulation of roaming charges. Otherwise, if MNOs are free to collaborate on investments, they set higher investment …. Furthermore, the paper discusses effects of the roaming charge regulation on roaming quality and MNOs' coverage. …

monopolistic prices, we model an investor's decision problem under a threat of regulation. We show that the mere threat of a … regulator's intervention may prevent supernormal profits without actual price regulation. The regulator, on the other hand, can … influence both the investment decision and the investor's price via her signals on regulation probability and price. …

practitioners and economists, taking the existing regulatory environment as fixed. Based on the degree of existing regulation (full …

Although we have many tools to understand the effect of regulation on firm entry, we know little about the importance … of actual regulation enforcement. For this purpose, this paper uses data from Spain's local television industry from 1995 … regulation and a posterior liberalization. During this period, the local television industry transitioned from a state of …

structures. The investment return in terms of demand increase is uncertain. We compare the impact of different access regulation … regimes – full regulation, partial regulation (only the copper network is regulated), risk sharing – on investment incentives …