overcoming the dynamic consistency problem of regulatory policy towards investment. We model the industry as a regulated duopoly … retailer needs access to the input produced by the wholesaler to operate. The incumbent can make an investment that improves … for which it is possible to induce socially desirable investment. …

investment cost is low, the regulator can induce investment when he cannot commit to a policy. Second, we show that in this case …

advertising revenues. We further show that the impact of network neutrality regulation on the investment in the quality of network … among CPs, investment and welfare are higher under the discriminatory regime. …

decide not to invest. When investment occurs, the vertically integrated firm may be induced to give access to the entrant for … a low access price for the old technology. Furthermore, when both firms can invest, investment occurs under a larger set …

investment. The hypothesis that liberalization promotes investment has received the most empirical support in recent research … investment by private and state-owned firms. We conduct an empirical study of the infrastructure investment of 20 incumbent … infrastructure investment by state-owned incumbents but reduces investment by private incumbents. …

access to them (OPf2). In our model, the level of investment is decided at stage 1 and the access price is decided at stage 2 … welfare and number of FTTH consumers) will be at its highest if both investment and access price decisions are taken by the …