We evaluate the impact of a price cap regulation implemented in the Colombian pharmaceutical market between 2011 and … after regulation) for the eighteen ATC groups. A triple differences model with fixed time effects and cluster errors is used … to identify the impact of this regulation. We find that the price-cap regulation contributed to reduce prices in three of …

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 …