Predictably Unpredictable: The Effects of Conflict Involvement on the Error Variance of Vote Models
British Journal of Political Science, 2014
International conflict has profoundly influenced election outcomes in some cases, and in other cases has had a minimal impact. This article develops a theory that the increased salience of foreign policy issues following periods of international hostilities increases the variance of government parties’ vote shares. In elections following conflict, the ability to accurately predict election outcomes using traditional economic voting models is reduced. The article provides evidence from advanced democracies in the post-World War II era that being involved in international disputes increases the predictive error of vote shares. More substantively, vote choice models should model the role of exogenous shocks such as international conflict in order to avoid making misleading inferences. The study concludes by discussing the meaningful implications for various theories of voting behavior and international conflict.