In this paper, we show that in order for third-degree price discrimination to increase total output, the demands of the strong markets should be, as conjectured by Robinson (1933), more concave than the demands of the weak ...

We analyze the consequences of consumers behavior concerning personal arbitrage in a spatial discrimination context where firms know the consumers distribution but cannot distinguish them by location. The firms' equilibrium ...

This paper presents a general analysis of the effects of monopolistic third-degree price discrimination on welfare and oputput when all markets are served. Sufficient conditions -involving straightforward comparisons of ...