This study extends the political science and political psychology literature on the political ideology of lawmakers by addressing the following question: How stable is a legislator's political ideology over time? In doing so, we employ Nokken-Poole scores of legislators' political ideology for...

This study extends the political science and political psychology literature on the political ideology of lawmakers by addressing the following question: How stable is a legislator's political ideology over time? In doing so, we employ Nokken-Poole scores of legislators' political ideology for...

Most research on congressional consideration of foreign and defense policy concludes that ideology is the most important influence on roll-call voting and that constituent economic interests are not very important. This article challenges this conclusion on two grounds. First, most previous...

Sufficient conditions for legislative cooperation are identified within the context of a model of repeated legislative interaction. We show that in many environments, cooperation is sustainable even among impatient legislators. Special attention is given to the case of repeated spatial...

We introduce a view of congressional party leaders as strategic manipulators of issue dimensions, similar in spirit to Riker's (1982, 1986) heresthetics. Party leaders have incentives to add to bills content from a secondary dimension in order to attract moderates’ support. This strategy...