Trade, peace and democracy

S. W. Polachek

"At least since 1750 when Baron de Montesquieu declared "peace is the natural effect of trade," a number of economists and political scientists espoused the notion that trade among nations leads to peace. Employing resources wisely to produce one commodity rather than employing them inefficiently to produce another is the foundation for comparative advantage. Specialization based on comparative advantage leads to gains from trade. If political conflict leads to a diminution of trade, then at least a portion of the costs of conflict can be measured by a nation's lost gains from trade. The greater two nations' gain from trade the more costly is bilateral (dyadic) conflict. This notion forms the basis of Baron de Montesquieu's assertion regarding dyadic dispute. This paper develops an analytical framework showing that higher gains from trade between two trading partners (dyads) lowers...