It has been suggested that mergers, by increasing concentration, raise incentives to invest and hence are pro-competitive. To study the effects of mergers, we rewrite a game with simultaneous price and cost-reducing investment choices as one where firms only choose prices, and make use of...

Cooperations among firms as well as enterprise networks - albeit not a new phenomenon - gain attention both in science and practice since state of the art technologies such as internet and new information- and communication-media open new dimensions of its design. Network structures and concepts...