This paper examines the effect of foreign direct investment (FDI) on domestic innovation based on a data set covering the pharmaceutical industries across 29 provinces in the People's Republic of China (PRC) over the period 1998-2007. We show that there is a negative horizontal spillover effect...

This paper provides a novel rationale for the regulation of market size when heterogeneous firms compete. A regulator seeks to maximize total welfare by choosing the number of firms allowed to enter the market, e.g. by issuing a certain number of licenses. Opening up the market for more firms...

In many markets, user benefits depend on participation and usage decisions of other users giving rise to network effects. Intermediaries manage these network effects and thus act as platforms that bring users together. This paper reviews key findings from the literature on network effects and...