Finding peace in a world of hegemony and terrorism

Although acknowledging the importance of power, Immanuel Kantsuggested that republican constitutions, economic interdependence,and international law and organizations can form the basis fora dramatically more peaceful world. Statistical analyses ofthe behavior of pairs of states, 1885–1992, confirm thisliberal vision. Using methods common to medical epidemiology,we find that the Kantian elements substantially reduce the likelihoodthat states will become involved in a fatal militarized dispute.Indeed, two democracies linked by extensive trade and a densenetwork of international organizations are 95% less likely tofight than states that do not share these characteristics. Ouranalyses have important implications for the United States andChina, two countries destined to shape the twenty-first century.Engaging China in trade and integrating it into the major internationalorganizations over the last three decades has, with some liberalizationof its government, substantially reduced the risk of militaryconflict.