JSTOR is a not-for-profit service that helps scholars, researchers, and students discover, use, and build upon a wide range of content in a trusted digital archive. We use information technology and tools to increase productivity and facilitate new forms of scholarship. For more information about JSTOR, please contact support@jstor.org.While considerable empirical evidence shows democratic dyads to be less prone to violence than other types of regime pairs, disagreement still exists on the causal factors inhibiting conflict among democratic states. Some scholars have concluded that increased attention needs to be given to identifying specific characteristics of democratic states that might mitigate or incite coercive foreign policy actions. This article begins to pull apart the Polity IIId regime index by assessing the role of political participation in crisis bargaining. If the ability of opposition groups to challenge government policies enables state leaders to communicate credibly their intentions and thus avoid conflict, increased attention needs to be given to the permanence of such structural features of the domestic political environment. What may facilitate efficient signaling is not only competitive political participation, but also the enduring nature of such participation. Regimes that oscillate between severe restrictions on political participation and regulated competition engage in more escalatory behavior because they fail to signal their preferences effectively. The results indicate that while democracy has little effect on MID reciprocation, factionalism among domestic political groups tends to be strongly associated with such a dispute response. Contiguity, military balance, and years at peace also appear to influence dispute reciprocation. *The author has benefited from the helpful comments of Scott Gates, Sara Mitchell, Nils Petter Gleditsch, Mark Souva, David Lektzian, Bruce Bueno de Mesquita, Bruce Russett, William Dixon, and four anonymous reviewers. They, of course, are not responsible for the remaining errors and omissions. The data used in this article can be obtained from http://www.uno.edu/-bprins/data.htm. 1998). Former Deputy Secretary of State Strobe Talbott (1996: 63) articulated the administration's view when he wrote, 'democracies are demonstrably more likely to maintain their international commitments, less likely to engage in terrorism or wreak environmental damage, and less likely to make war on each other'. What's more, Talbott concluded his article by stating, 'Only in an increasingly democratic world will the American people feel themselves truly secure.' While considerable empirical evidence shows democratic dyads to be less prone to violence than other types of regime pairs, disagreement still exists on the causal factors inhibiting conflict among democratic states (Gowa, 1995). Indeed, theoretical and empirical discrepancies in the regime type and 67 l 68 journal of PEACE RESEARCH