market regulation have motivated this quality improvement. In particular we show that this rise in quality is only profitable …

, investments increase off-net traffic from the investor’s network but also from competitors’ networks. Regulation changes the … functions. Testing for a common regulation-investment effect provides evidence that the negative investment externality is not … due to regulation. …

This paper considers the impact of European telecom regulation on the value of affected companies. Employing a … repeating ARGARCH model, I compare the effect of three types of regulation which are categorized based on the addressed subject …, i.e. cross-market, country-specific and company-specific regulation. While standard event study approaches are a special …

Unbundling of vertically integrated utilities has become an integral element in the regulation of network industries … able to identify heterogeneous effects of legal unbundling for different types of price regulation, because we observe a … switch in the price regulation regime from rate-of-return regulation to incentive regulation during our observation period …

We propose a difference-in-differences (DiD) approach to estimate the impact of incentives on cost reduction. We show … used to determine future prices when subject to a lower-powered regulation mechanism. The difference is particularly …