Reverse Revolving Doors: The Influence of Interest Groups on Legislative Voting

53 Pages Posted: 13 Jan 2021 Last revised: 20 Feb 2024

See all articles by Miguel Alquezar-Yus

Miguel Alquezar-Yus

European University Institute

Josep Amer-Mestre

European University Institute

Date Written: October 19, 2022


This paper investigates to which extent legislators with a background in an interest group (i.e., reverse revolvers) influence other legislators’ voting behavior. To answer this question, we collect novel data containing the universe of votes cast at the European Parliament between 2004 and 2019 and characterize legislators by their former working experience. Using the alphabetic allocation of seats, we find that seating beside reverse revolvers when the motion is relevant to their former interest groups increases co-voting by 2.4%, attendance by 1.3%, and decreases abstention by 9%. We find no influence on non-relevant ballots. These effects are driven by budget-related motions and interest groups with limited lobbying spending. Our results show that the revolving doors influence the political process when working in reverse.

Keywords: Voting Behaviour, Interest Groups, Social Interaction, Revolving Doors, European Parliament, Decision-Making

JEL Classification: D72, D73, F53, N44, P16

Suggested Citation

Alquezar-Yus, Miguel and Amer-Mestre, Josep, Reverse Revolving Doors: The Influence of Interest Groups on Legislative Voting (October 19, 2022). Available at SSRN: or

Miguel Alquezar-Yus (Contact Author)

European University Institute ( email )

Via della Badia dei Roccettini, 9
Fiesole, Tuscany 50014

Josep Amer-Mestre

European University Institute ( email )

Villa La Fonte
Via delle Fontanelle 18
San Domenico di Fiesole, Florence 50014

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