Multiple Ideal Points: Revealed Preferences in Different Domains
Moser, Scott; Rodríguez, Abel; Lofland, Chelsea L.
Chelsea L. Lofland
We extend classical ideal point estimation to allow voters to have different preferences when voting in different domains – for example when voting on agricultural policy than when voting on defense policy. Our scaling procedure results in estimated ideal points on a common scale. As a result, we are able to directly compare a member’s revealed preferences across different domains of voting (different sets of motions) to assess if, for example, a member votes more conservatively on agriculture motions than on defense. In doing so we are able to assess the extent to which voting behavior of an individual voter is consistent with a uni-dimensional spatial model – if a member has the same preferences in all domains. The key novelty is to estimate rather than assume the identity of “stayers” – voters whose revealed preference is constant across votes. Our approach offers methodology for investigating the relationship between the basic space and issue space in legislative voting (Poole, 2007). There are several methodological advantages to our approach. First, our model allows for testing sharp-hypotheses. Second, the methodology developed can be understood as a kind of partial-pooling model for IRT scaling, resulting in less uncertainty of estimates. Related, our estimation method provides a principled and unified approach to the issue of “granulatity” (i.e. the level of aggregation) in the analysis of roll-call data (Crespin & Rohde, 2010; Roberts, Smith, & Haptonstahl, 2016). We illustrate the model by estimating U.S. House of Representatives members’ revealed preferences in different policy domains, and identify several other potential applications of the model including: studying the relationship between committee and floor voting behavior; and investigating constituency influence and representation.
|Journal Article Type||Article|
|Publisher||Oxford University Press|
|Peer Reviewed||Peer Reviewed|
|APA6 Citation||Moser, S., Rodríguez, A., & Lofland, C. L. (in press). Multiple Ideal Points: Revealed Preferences in Different Domains. Political Analysis,|
This file is under embargo due to copyright reasons.
You might also like
Measuring and accounting for strategic abstentions in the US Senate, 1989-2012
The domestic politics of strategic retrenchment, power shifts, and preventive war
Taking the leap: voting, rhetoric, and the determinants of electoral reform