new fiber-based communications infrastructure. Since such investment is expected to induce substantial positive … implementation and competitive market structures including allowance of co-investment models, and iii) public subsidies to cover non …, where only monopoly structure or co-investment models lead to private investment. Deregulatory policies might be preferable …

for West Germany and the Federal Republic of Germany, respectively. The main focus here is the modeling of investment … remained fairly stable when switching from West Germany to the Federal Republic of Germany. One notable exception is investment …

model is used to assess this development. In particular, estimation results for investment and employment adjustment after … this paper to cover also unified Germany. The results reveal that the adjustment of investment and employment can be … analysed with the same theoretical model for West and East Germany. However, the adjustment speed for investment differs …

, there is a need for unbundling regulation to foster competition. Improvements to the current open-network regulation …

functions. Testing for a common regulation-investment effect provides evidence that the negative investment externality is not …, investments increase off-net traffic from the investor’s network but also from competitors’ networks. Regulation changes the … due to regulation. …