This model discusses mobile network operators' (MNOs) incentives to invest in their network facilities such as new 4G networks under various regimes of data roaming charge regulation. Given an induced externality of investments (spillovers) due to the roaming agreements it will be shown that...

This paper examines the consequences of an increase in the expected fine for non-compliance with an environmental design standard for an industry with Cournot competition and free entry. Our analysis is quite timely, given recent policy proposals to raise environmental fines. We describe the...

Many countries with national health care providers and health insurances regulate the market for pharmaceuticals to steer drug demand and to control expenses. For example, they introduce reference pricing or tiered co-payments to enhance drug substitution and competition. Since 2006, Germany...