Revealing the Anatomy of Vote Trading

24 Pages Posted: 5 Nov 2016  

Omar A. Guerrero

University of Oxford

Ulrich Matter

Harvard University - Berkman Klein Center for Internet & Society; University of Basel - Center for Economic Science

Multiple version iconThere are 2 versions of this paper

Date Written: November 4, 2016

Abstract

Cooperation in the form of vote trading, also known as logrolling, is central for law-making processes, shaping the development of democratic societies. Empirical evidence of logrolling is scarce and limited to highly specific situations because existing methods are not easily applicable to broader contexts. We have developed a general and scalable methodology for revealing a network of vote traders, allowing us to measure logrolling on a large scale. Analysis on more than 9 million votes spanning 40 years in the U.S. Congress reveals a higher logrolling prevalence in the Senate and an overall decreasing trend over recent congresses, coincidental with high levels of political polarization. Our method is applicable in multiple contexts, shedding light on many aspects of logrolling and opening new doors in the study of hidden cooperation.

Suggested Citation

Guerrero, Omar A. and Matter, Ulrich, Revealing the Anatomy of Vote Trading (November 4, 2016). Saïd Business School WP 2016-26. Available at SSRN: https://ssrn.com/abstract=2864445

Omar A. Guerrero (Contact Author)

University of Oxford ( email )

Park End St.
Oxford, Oxfordshire OX1 1HP
United Kingdom

Ulrich Matter

Harvard University - Berkman Klein Center for Internet & Society ( email )

Harvard Law School
23 Everett, 2nd Floor
Cambridge, MA 02138
United States

University of Basel - Center for Economic Science ( email )

Basel, 4051
Switzerland

HOME PAGE: http://wwz.unibas.ch/matter

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