Behavioural Social Choice

Behavioural Social Choice looks at the probabilistic foundations of collective decision-making rules. The authors challenge much of the existing theoretical wisdom about social choice processes, and seek to restore faith in the possibility of democratic decision-making.

by Ilia Tsetlin, A.A.J. Marley, Bernard Grofman and Michel Regenwetter
Last Updated: 23 Jul 2013

In particular, they argue that worries about the supposed prevalence of majority rule cycles that would preclude groups from reaching a final decision about what alternative they prefer have been greatly overstated.

In practice, majority rule can be expected to work well in most real-world settings. Furthermore, if there is a problem, they show that the problem is more likely to be one of sample estimates missing the the majority winner in a close contest (e.g., Bush-Gore) thatn a problem about cycling.

The authors also provide new mathematical tools to estimate the prevalence of cycles as a function of sample size. They provide new insights into how alternative model specifications can change our estimates of social orderings.

- Michel Regenwetter is Associate Professor of Psychology and Political Science at the University of Illinois at Urbana-Champaign (UIUC).
- Bernard Grofman is Professor of Political Sciences at the University of California, Irvine.
- A. A. J. Marley, a Fellow of the American Psychological Society is also Adjunct Professor at the University of Victoria and Professor Emeritus of McGill University.
- Ilia Tsetlin is an Assistant Professor of Decision Sciences at INSEAD.

Cambridge University Press, 2006


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