No abstract.

No abstract.

No abstract.

No abstract.

This paper models a private goods oligopoly market characterized by negative and reciprocal externalities. Although firms compete in prices and products are undifferentiated in equilibrium, the price-cost margin turns out to be positive. From a social perspective, the equilibrium price is higher...

Should organizers of events, such as sport games or concerts, share the costs of maintaining public order in connection to the events? This question has been hotly debated in many countries, especially in connection to soccer hooliganism. Critics argue that organizers should do more to combat...