Research




Intuition suggests that major powers should be more likely to pursue joint military intervention when their preferences are most similar, but empirically, joint interventions are least likely in these cases. The solution to this puzzle lies in the strategic interaction between interveners. When states agree over policy, they face a free rider problem. A state is more willing to join an intervention as its preferences with the initial intervener diverge because doing so allows it to affect policy outcomes. To test the theory, a statistical model derived from the theoretical model is used to estimate the factors that affect the decisions of major powers to intervene in civil conflicts.
Conventional wisdom suggests that biased military interventions in civil conflicts should increase the probability that the supported side will win. However, while this is the case for rebel groups, the same is not true for governments. The explanation for this surprising fnding becomes clear once one considers the decision of a third party intervener. Since interveners want to impact the outcomes of civil conflict, government- and rebel-biased interventions will be more likely when the government is facing a stronger rebel group. Given that government-biased third parties intervene in the "toughest" cases, empirically they appear to be less e®ective than rebel-biased interveners

  • External Threats and U.S. Intervention in the Caribbean Basin
When deciding whether to intervene militarily, states consider the anticipated actions of other potential interveners. If major powers have conflicting policy preferences, they have incentives to intervene preemptively to eliminate the possibility of future interventions by rival powers.  Given this, major powers should be more likely to intervene in their spheres of influence when another power provides an external threat. An historical examination of U.S. intervention behavior in the Caribbean Basin supports this argument.

  • Rebel Strength, Commitment Problems, and Civil War Peace Agreements
Power-sharing agreements can help combatants overcome commitment problems that prevent the successful settlement of civil wars. However, the decision to accept a power-sharing agreement is strategic. Governments will only be willing to make such concessions when they face stronger rebel groups. Since rebels will be more likely to sign a peace agreement if it includes power-sharing, civil war combatants will be more likely to successfully reach an agreement when rebel groups are stronger. Empirical tests provide strong support for the theory, indicating that rebel strength increases thelikelihood of both civil war peace agreements and power-sharing pacts.

  • Bias and the Effectiveness of Third Party Diplomatic Intervention Strategies in Territorial Claims (with Megan Shannon)
Are unbiased third parties more effective conflict managers than biased third parties? While conventional wisdom holds that best intermediaries are unbiased, scholars have not definitively concluded if and how impartiality leads to successful negotiations.  In this paper, we investigate the management of international territorial claims to determine the utility of unbiased third parties. Surprisingly, we find that the nature of the intervener’s preferences does not influence dispute management as much as the intervention technique used. When territorial rivals undergo binding negotiations that are the most effective in resolving disputes, they prefer unbiased intermediaries to hand down compulsory decisions. In this sense, impartial diplomatic intervention does not directly lead to successful negotiations. Rather, disputants favor unbiased third parties to broker the types of talks most likely to end international disputes.

  • Scapegoating Strategically: Reselection, Strategic Interaction & Diversionary Theory

  • Formalizing Informal Cooperation: Norm-Based Cooperation and the European Stability and Growth Pact (with Randall Stone)

  • Pivotal Swing States and Misfires: Modeling State Presidential Vote and the Electoral College (with Lynda Powell and Cliff Brown)

  • Toward a More Perfect Union: Demographic Change and Agenda Setting in the U.S. Congress, 1973-2004 (with Valeria Sinclair-Chapman)


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