US

Decomposing Public Opinion Variation into Ideology, Idiosyncrasy and Instability

We propose a method for decomposing variation in the issue preferences that US citizens express on surveys into three sources of variability that correspond to major threads in public opinion research. We find that, averaging across a set of high profile US political issues, a single ideological dimension accounts for …

Legislator Characteristics, Constituency Characteristics, and Roll Call Voting

Which matters more when legislators make decisions, their own characteristics or those of the people they represent? This paper uses comprehensive data on the personal attributes of both members of Congress and their constituents to com- pare the relative influence of eight legislator and constituency …

Latent Versus Self-Reported Ideology

Spatial voting axes are seldom directly measurable. In general, political scientists employ latent variable models that aim to infer the presence and characteristics of axes from their impact on measurable quantities such as voting behavior. Ideology in the electorate is a rare case where researchers regularly attempt …