In a hub-and-spoke network, the profit function of an airline is supermodular with respect to the airline's own entry decisions for different city-pairs. This source of complementarity implies that a hub-and-spoke network can be an effective strategy for deterring the entry of competitors. This...

This paper examines competition among commercial banks following deregulation in a small open economy. I jointly estimate a system of differentiated product demand and pricing equations, and use conduct parameters to identify market structure. The empirical results show that the banking sector...