Politics to the Extreme: Mapping the Interest Group Universe

  • Ethan Poytress csuci


This research aims to accomplish two things: 1) to calculate the policy ideal points ofinterest groups, and 2) explore whether polarization in the Congress is reflected in the interestgroup universe. I utilize congressional roll call vote data coupled with a mathematical algorithmto map shifting ideological “ideal points” of interest groups over time in one and twodimensionalspace. I observe potentially meaningful similarity between movements of legislatorand interest group ideal points, wherein interests groups are treated as voting members of theUS House.
How to Cite
Poytress, E. (2014). Politics to the Extreme: Mapping the Interest Group Universe. CSUCI Journal of Undergraduate Research, 1(2). Retrieved from https://journals.calstate.edu/ugjrnl/article/view/2909