Investments and network competition

We analyze the impact of two-way access charges on the incentives to invest in networks with different levels of quality. When quality has an impact on all calls initiated by customers (destined both on-net and off-net), we obtain a result of "tacit collusion" even in a symmetric model with two-part pricing. Firms tend to underinvest in quality, and this is exacerbated if they can negotiate reciprocal termination charges above cost. When the quality of off-net calls depends on the interaction between the quality of the two networks, no network has an incentive to jump ahead of its rival by investing more.