Influence in the United States Senate

39 Pages Posted: 14 Jul 2014 Last revised: 2 Feb 2016

Matthew James Denny

Pennsylvania State University

Date Written: January 29, 2016

Abstract

Interpersonal influence is an important, yet difficult to measure factor mediating legislative outcomes in the United States Congress. Building on theories that conceptualize a legislator's influence as an individual property, I cast influence in a relational framework, recognizing that influence is exercised through legislators’ social and political networks. I develop a novel measure of legislative influence using temporal patterns in bill cosponsorship data as an instrument to infer a latent network of influence relationships between legislators. I then validate the measure of legislative influence I derive from these networks in several contexts. For example, scholars have observed a decrease in the power of committee chairs relative to party leadership over time, yet existing quantitative measures of interpersonal influence do not agree with these findings at a micro level. I find that my measure performs like an effective measure of interpersonal influence in Congress.

Keywords: Network, Influence, Congress, Diffusion

Suggested Citation

Denny, Matthew James, Influence in the United States Senate (January 29, 2016). Available at SSRN: https://ssrn.com/abstract=2465309 or http://dx.doi.org/10.2139/ssrn.2465309

Matthew James Denny (Contact Author)

Pennsylvania State University ( email )

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