European mobile communication markets are two-stage markets which are composed of the infrastructure (the network and its components) and the service markets (telephony, mobile internet, SMS). In contrast to most other network-based markets there are multiple fully integrated providers which...

This paper identifies substantial flaws in how U.S. government agencies and courts assess the impact of proposed mergers by firms using broadband networks to reach consumers. Based on current market definitions, consumer impact assessments and economic doctrine, antitrust enforcement agencies...

In the context of yardstick regulation with long-lived assets, the influence of heterogeneous investment cycles on the ability to recover capital is found to be important. The application of efficient firm standards based on historic (straight-line) depreciation given heterogeneous investment...

In the context of yardstick regulation with long-lived assets, the influence of investment cycles and thereof resulting heterogeneous capital structures on the ability to recover capital is quite important. Investment decisions are based on whole investment cycles of the infrastructure. It is...

This paper focuses on the trade-off faced by governments in deciding the allocation of public expenditures between productivity-enhancing public infrastructures and utility-enhancing public consumption in a two-country model. The results show that a permanent increase in the domestic stock of...

"We present a dynamic two-region model with overlapping generations. There are two types of public expenditure, education and infrastructure funding, and governments decide optimally on budget size (tax rate) and its allocation across the two outlays. Productivity of government infrastructure...