In many societies the domestic social costs of adjustment to changing patterns of comparative advantage are believed to outweigh the advantages of further trade liberalization.

Many critics see international trade as a form of cultural imperialism that must be strictly controlled.

The competitive nation-state system, with all its capacity for good and evil, is spreading in the Third World and is transforming that world.

These two opposed forms of social organization, the modern state and the market, have evolved together through recent centuries, and their mutual interactions have become increasingly crucial to the character and dynamics of international relations in our world.

One reason for the primacy of the market in shaping the modern world is that it forces a reorganization of society in order to make the market work properly . When a market comes into existence, as Marx fully appreciated, it becomes a potent force driving social change.

Trade is the oldest and most important economic nexus among nations. Indeed, trade along with war ha been central to the evolution of international relations.

The world economy diffuses rather than concentrates wealth.