In this article, I examine several models of voter behavior that are consistent with recent work in political psychology (Fiske and Tetlock, 1997) concerning incommensurability and individuals’ reluctance to make decisions involving explicit trade-offs between competing ideals or...

This article considers manipulation of collective choice — in such environments, a potential alternative is powerful only to the degree that its introduction can affect the collective decision. Using the Banks set (Banks, 1985), we present and characterize alternatives that can, and those...