This paper studies how former interest groups’ employees turned politicians (who we label as lobbyist legislators) influence the voting behavior of their colleague legislators. Using the alphabetic allocation of seats in the European Parliament and detailed individual résumé information, we...

Interest groups are introduced in a spatial model of electoral competition between two political parties. We show that, by coordinating voting behavior, these interest groups increase the winning set, which is defined as the set of policy platforms for the challenger that will defeat the...