A large number of individuals are randomly matched into groups, where each group plays a finite symmetric game. Individuals breed true. The expected number of surviving offspring depends on own material payoff, but may also, due to cooperative breeding and/or reproductive competition, depend on...

We consider a leader and a subordinate he appoints who engage in team production. The public observes the organization's performance, but is unable to determine the separate contributions of the leader and of the subordinate. The leader may therefore claim credit for the good work of his...

Publicly provided health care implies considerable intergenerational redistribution. The possibility of accumulating a fund or debt will affect the degree of redistribution as well as how efficient the financing of health care is. In a voting model we study how governments inability to make...

OBJECTIVE: This article examines whether there are differences in men's and women's use of the Internet and whether any such gender gaps have changed in recent years. METHODS: We use data from several surveys during the period 1997 to 2001 to show trends in Internet usage and to estimate...

This paper studies studies two-party electoral competition in a setting where no policy is unbeatable. It is shown that if parties take turns in choosing platforms and observe each other's choises, altering one's platform so as to win is pointless since the other party never accepts an outcome...

This paper considers redistributive as well as political consequences of tax avoidance. When investing in tax avoidance is possible, the official tax rate does not necessarily correspond to what individuals actually pay in taxes. This affects both redistributive outcomes as well as individual's...