In this paper we compare the costs of two regulatory policies about the entry of new firms. We consider an incumbent … to persuade the regulator to make entry more difficult. With the first regulatory policy the regulator uses the incumbent … price pre-regulation to get information about the demand. With the second regulatory policy the regulator design a mechanism …

difficulties of cross-sector infrastructure sharing are divided by sector (telecommunications and energy, gas, roads and railways … infrastructure) and the absence of regulation for specific sectors at the national level. …

difficulties of cross-sector infrastructure sharing are divided by sector (telecommunications and energy, gas, roads and railways … infrastructure) and the absence of regulation for specific sectors at the national level. …

differentiation. For instance, there are useful rules in general non-discrimination law, and in the General Data Protection Regulation …