Skip to Main content Skip to Navigation
Preprints, Working Papers, ...

Does Vote Trading Improve Welfare?

Abstract : Voters have strong incentives to increase their inuence by trading votes, a practice indeed believed to be common. But is vote trading welfare-improving or welfare-decreasing? We review the theoretical literature and, when available, its related experimental tests. We begin with the analysis of logrolling { the exchange of votes for votes, considering both explicit vote exchanges and implicit vote trades engineered by bundling issues in a single bill. We then focus on vote markets, where votes can be traded against a numeraire. We cover competitive markets, strategic market games, decentralized bargaining, and more centralized mechanisms, such as quadratic voting, where votes can be bought at a quadratic cost. We conclude with procedures allowing voters to shift votes across decisions { to trade votes with oneself only { such as storable votes or a modi_ed form of quadratic voting. We _nd that vote trading and vote markets are typically ine_cient; more encouraging results are obtained by allowing voters to allocate votes across decisions.
Document type :
Preprints, Working Papers, ...
Complete list of metadatas

Cited literature [107 references]  Display  Hide  Download

https://halshs.archives-ouvertes.fr/halshs-02922012
Contributor : Caroline Bauer <>
Submitted on : Tuesday, August 25, 2020 - 4:52:00 PM
Last modification on : Saturday, September 19, 2020 - 4:39:00 AM

File

WP_202051_.pdf
Files produced by the author(s)

Identifiers

Citation

Alessandra Casella, Antonin Macé. Does Vote Trading Improve Welfare?. 2020. ⟨halshs-02922012⟩

Share

Metrics

Record views

66

Files downloads

122