Just so there is no misunderstanding: I do not believe economic policies can make much of a contribution to peacekeeping. During the nineteenth century and up to the present there has been a tendency to stress too much the economic factors in international relations. Liberal economic theory, from the classical writers on, is in this respect strikingly similar to what we now identify as the “Marxist” tradition. It is glibly assumed in both camps that trade is an important contributor to peaceful relations on the political level. That trade and economic relations generally worked for peace was an important corollary to the free-trade doctrine, and as a general proposition it now receives almost universal acclaim.