Switching costs may facilitate monopoly pricing in a market with price competition between two suppliers of a homogenous good, provided the switching cost is above some critical level. It is also well known that asymmetric size of customer bases makes monopoly pricing more difficult. Adding...

We review the recent literature on mobile termination rates (MTR) in mobile communication networks (M2M). This literature shows that mobile networks may have incentives to charge ineficient high termination charges leading to reduced surplus for consumers and society, and therefore should be...

Consider a model with two types of jobs. The profitability of promoting a worker to a fast-track job depends not only on his or her observable talent, but also on incontractible effort. We investigate whether self-fulfilling expectations may lead to women meeting tougher promotion standards than...

When a government cannot commit to future policies, investors face the risk of opportunistic behavior in addition to uncertain market conditions. We show that although reducing market uncertainty is sometimes essential for investment, it may aggravate problems of opportunism. The better informed...