Storable votes with a “pay as you win” mechanism

Arturo Macías ()
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Arturo Macías: Banco de España

Journal of Economic Interaction and Coordination, 2024, vol. 19, issue 1, No 4, 150 pages

Abstract: Abstract This paper introduces a new storable vote mechanism (Storable Votes-Pay as you win, SV-PAYW) where a fixed number of votes is cast among different alternatives, and the votes spent (and redistributed) on each election depend only on the number cast for the winning alternative. The mechanism is expected to deliver more enfranchisement, efficiency and a reduction of uncertainty and strategic behavior with respect to previously known voting systems. To compare the pure storable votes with the SV-PAYW implementations, two key characteristics are monitored: the “enfranchisement gap”, which measures the proportionality between political influence and electoral victories, and the “efficiency ratio”, which assesses the utility derived from the allocation of electoral victories on a scale from random allocation (zero) to the social optimum (one). SV-PAYW consistently outperforms pure storable votes in terms of enfranchisement in all cases. Additionally, as a general rule (there are some exceptions), the “efficiency ratio” tends to be higher for SV-PAYW, hovering around 0.7.

Keywords: Voting mechanisms; Strategic voting; Storable votes; Vote trading (search for similar items in EconPapers)
JEL-codes: D7 F33 H4 (search for similar items in EconPapers)
Date: 2024
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DOI: 10.1007/s11403-024-00407-1

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