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This article reviews the range of explanations which have been proposed for voting behaviour in the US elections won by Ronald Reagan and develops a comprehensive model for the evolution of electoral choices in both of those contests. Estimates are provided for both the direct and indirect effects of several types of variables or ‘explanatory themes’, and those estimates are used to assess the relative importance of each of those themes in explaining individual-level choices and the aggregate outcomes of both Reagan elections. These procedures suggest that preferences concerning both policy direction and evaluations of national and presidential performance played major roles in the two Reagan elections – both in the individual-level decisions and in producing the Republicans' aggregate victories.
Shanks et al. (Sun,) studied this question.