The Swing Voter's Curse in Social Networks

Arbeitspapier

We study private communication in social networks prior to a majority vote on two alternative policies. Some (or all) agents receive a private imperfect signal about which policy is correct. They can, but need not, recommend a policy to their neighbors in the social network prior to the vote. We show theoretically and empirically that communication can undermine efficiency of the vote and hence reduce welfare in a common interest setting. Both efficiency and existence of fully informative equilibria in which vote recommendations are always truthfully given and followed hinge on the structure of the communication network. If some voters have distinctly larger audiences than others, their neighbors should not follow their vote recommendation; however, they may do so in equilibrium. We test the model in a lab experiment and strong support for the comparative-statics and, more generally, for the importance of the network structure for voting behavior.

Object Details

• Language: Englisch

References and Relationships

• Bibliographic citation: Series: Nota di Lavoro ; No. 5.2017

Classification and Topics

• Classification: Wirtschaft ; Political Processes: Rent-seeking, Lobbying, Elections, Legislatures, and Voting Behavior ; Search; Learning; Information and Knowledge; Communication; Belief; Unawareness ; Network Formation and Analysis: Theory ; Design of Experiments: Laboratory, Individual
• Subject: Strategic Voting ; Social Networks ; Swing Voter's Curse ; Information Aggregation

Contributors, Places and Time

• Event: Geistige Schöpfung
• (who): Buechel, Berno ; Mechtenberg, Lydia
• Event: Veröffentlichung
• (who): Fondazione Eni Enrico Mattei (FEEM)
• (where): Milano
• (when): 2017

Further information

• Handle: http://hdl.handle.net/10419/162247
• Last update: 10.03.2025, 11:43 AM CET