platforms. Cross-market platform competition exists, i.e., app and ad platforms compete for developers' revenue sources to earn … development of a unified model to examine them jointly. The results provide novel implications for competition policy, which could … not be reached without consideration for cross-market platform competition …

between the old andthe new technology and on whether firms compete in prices. Without price competition, a partiallock …-in occurs if (and only if) the quality difference is small. In the presence of price competition,lock-in in the traditional …

competition among CPs strongly reduces their profits, in the Unregulated Regime ISPs can use termination fees to induce …

analyzed in the polar cases of perfect competition and monopoly. We find that, while under perfect competition both types of …

, within an established railway network with every track being profitable, competition on just some tracks can result in a … profitability of the network. Hence, weakening these network effects might be crucial. As a result, efficient intermodal competition … on some routes might cause the abandoning of other routes that are not facing any competition. This effect has to be …