The guerrilla war in Afghanistan pits tribes against a colonial power. This form of guerrilla war is put into perspective and used to develop a simple dynamic mathematical model describing (1) the macrocombat interactions between the Afghan guerrilla forces and the Soviet and Afghan regular...

The protection and enforcement of property rights both at the national and international levels is mostly taken for granted so that the importance of this issue for the smooth flow of international transactions is not always fully realized. One has to remember that about 200 years ago, large...