regulation in the us telecommunication sector and its impact on risk daniel grote centre for market public organisation university of bristol august 2006 corresponding address institute affairs 2 priory road bs8 1tx united kingdom phone 44 0 117 33 10738 e mail ac uk abstract from 1980s onwards price cap replaced traditional rate return as regulatory instrument almost all network sectors according to new economics sets low incentives cost reductions efficiency improvements since company could pass through any changes customers but is not allowed retain additional profits shifting s stockowners via a switch should increase result higher levels however empirical literature performance shows quite mixed results indicating increased unchanged or even decreased under there are very few studies addressing