The Democratic Advantage by the Numbers

Abstract

Abstract This chapter examines quantitative evidence for a link between a state’s domestic political institutions and its power in the international system. Using standard international relations datasets, it finds significant support for the democratic advantage idea. It is notable how often democracies appear at or near the top of global power rankings. And this is even more remarkable when one considers how historically rare this form of government has been. This chapter finds that, on average, democracies possess more power than autocracies. It reveals that they are more likely to find themselves among the major powers and at the very top of the global distribution of power. Finally, it also demonstrates that, when comparing democratic and autocratic competitors from a common baseline and watching their power trajectories unfold over time, the trend-lines favor democracies. The chapter concludes with a discussion of the research design for the case studies to follow.