An important issue in economics is how market structure affects prices.While the standard view is that competition lowers prices, Chen andRiordan (2006) argued that with product differentiation it is notexceptional for prices to be higher under duopoly than monopoly. Thispaper empirically...

This paper empirically investigates the effect of international simpleresale (ISR) authorization on the prices for international messagetelephone service (IMTS). We compile a firm-level panel data set forover 200 United States-foreign country bilateral markets from 1995 to2004. These data...