A live experiment on approval voting

This paper presents a large-scale experiment on the Approval Voting rule that took place during the 2002 French presidential election. We describe the experiment and its main results. The findings are as follows: (i) Such an experiment is feasible, and very well accepted by voters. (ii) The principle of approval voting is easily understood and accepted. (iii) Within the observed political context, compared to the official first-round vote, approval voting modifies the overall ranking of candidates. (iv) The candidates Le Pen and Chirac, more than the others, were able to convert approval votes into official first-round votes. JEL Classification C93, D70, D72     

Unsettling aspects of voting theory

Summary. Voting procedures are known to be plagued with a variety of difficulties such as strategic voting, or where a voter is rewarded with a better election outcome by not voting, or where a winning candidate can lose by receiving more support. Once we know that these problems can occur, the next objective should be to completely understand how, why, and where they arise. Namely, for each election procedure, the new goal is to determine when such problems can occur, all voter types who can cause these difficulties, and the actions they must take. This paper develops an easily used approach to handle all of these issues for standard voting methods. New intuitive explanations for these various oddities follow from this approach. Received: August 14, 2002 ; revised version: September 4, 2002 RID="*" ID="*"My thanks to Richard Barrett and, in particular, to Hannu Nurmi for corrections, several useful comments, and suggestions they made about earlier versions. Also, my thanks to a referee for calling some excellent references to my attention. An earlier draft was presented at the 2002 Public Choice Society meeting. This research was supported by an NSF grant.     

The likelihood of the referendum paradox for a given referendum result

The referendum (or compound majority) paradox occurs when the majority of voters in the majority of districts supports an issue/candidate but the majority of voters across all districts opposes the same issue/candidate (or vice versa). We calculate the likelihood of this social choice anomaly for any (possibly large) odd number of districts and any (possibly large) odd number of voters per district. The likelihood of the paradox is close to 50% when the issue/candidate is divisive (voters across all districts are split almost 50%–50%). The paradox virtually disappears when the issue/candidate is supported/opposed by at least two-thirds of all voters.     

The geometry of voting power: Weighted voting and hyper-ellipsoids

Suppose legislators represent districts of varying population, and their assembly's voting rule is intended to implement the principle of one person, one vote. How should legislators' voting weights appropriately reflect these population differences? An analysis requires an understanding of the relationship between voting weight and some measure of the influence that each legislator has over collective decisions. We provide three new characterizations of weighted voting that embody this relationship. Each is based on the intuition that winning coalitions should be close to one another. The locally minimal and tightly packed characterizations use a weighted Hamming metric. Ellipsoidal separability employs the Euclidean metric: a separating hyper-ellipsoid contains all winning coalitions, and omits losing ones. The ellipsoid's proportions, and the Hamming weights, reflect the ratio of voting weight to influence, measured as Penrose–Banzhaf voting power. In particular, the spherically separable rules are those for which voting powers can serve as voting weights.     

The structure of bias in peer voting systems: lessons from the Eurovision Song Contest

This paper assesses whether and how common characteristics of jury members or peer voters affect the outcomes of voting systems. In particular, we analyze to what extent these common features result in voting bias. We take as a case study the Eurovision Song Contest for which an extensive amount of historical data is available. In contrast to earlier studies we analyze the impact of common factors on the bias individually for each country, which is necessary to substantiate the publicly debated accusations of regional block voting by certain groups of countries. We establish strong evidence for voting bias in the song contest on the basis of geography, even after correction for culture, language, religion and ethnicity. However, these effects do generally not correspond to the usual accusations. We believe that our findings extend to all instances where groups of jury members or peer voters share certain common factors, which may cause voting bias. It is important to identify such structures explicitly, as it can help avoiding bias in the first place. The authors are grateful to Marieke van Dijk for excellent research assistance and to Laurens Swinkels, Ieva Pudane, Gijsbert van Lomwel, Jelena Stefanovic, and Bas van den Heuvel for useful comments. The usual disclaimer applies.     

An institutional analysis of voter turnout: the role of primary type and the expressive and instrumental voting hypotheses

Recent events highlight primary type as an institutional variable that merits further examination in the economics literature on voter turnout. Using panel data for U.S. gubernatorial elections and treating primary type as a proxy for candidate deviation from the median voter, we test whether primary type changes voter turnout and whether that change is dominated by instrumental or expressive voting. The results show that states with more open primaries tend to have greater voter turnout in general elections, and that this increase reflects the effect of open primaries on expressive voting.

Victory margins and the paradox of voting

This paper addresses a simple question: why do people vote? Though simple, this question remains unanswered despite the considerable attention it has received. In this paper, I show that purely rational–instrumental factors explain a large fraction of turnout variations, provided that the effect of the margin of victory on implemented policy is considered. I extend Myerson's models of elections based on Poisson games, and show that, when platforms are responsive to vote shares, the predictions of the model become consistent with several stylized facts, including the secular fall in turnout rates in the US.     

Determinants of voting behaviour on the Keystone XL Pipeline

After lengthy debate, the Keystone XL Pipeline bill passed in January 2015. We use this event to better understand the determinants of Senator voting behaviour. Specifically, this article attempts to examine the relative impacts of political and economic influences. This is accomplished through the use of a binary logit regression model with legislator vote as the dependent variable. Results indicate that while legislators do appear to be representing their political constituency, the role of campaign funding plays an important role as well. The economic effect of such funding, controlling for other factors, is quantitatively small.     

The welfare consequences of strategic behaviour under approval and plurality voting

This paper studies the welfare consequences of strategic behaviour under approval and plurality voting by comparing the utilitarian efficiencies obtained in simulated voting under two behavioural assumptions: expected utility-maximising behaviour and sincere behaviour. Under approval voting utilitarian efficiency is relatively high irrespective of the behavioural assumption, and under the plurality rule strategic voting significantly increases utilitarian efficiency.     

An experimental test of a committee search model

The objective of this paper is to design a laboratory experiment for an infinite-horizon sequential committee search model in order to test some of the implications obtained by the model in Albrecht et al. (2010) (AAV). We find that, compared with single-agent search, the search duration is longer for committee search under the unanimity rule, but is shorter for committee search in which at least one vote is required to stop searching. In addition, according to estimates from round-based search decisions, subjects are more likely to vote to stop searching in committee search than in single-agent search. This confirms that agents are less picky in committee search. Overall, the experimental outcomes are consistent with the implications suggested by the AAV model. However, despite the prediction from the AAV model, we could not obtain a significant outcome in relation to the size order of the probabilities of voting to stop searching in committee search for the various plurality voting rules.     

Majority Rule in a Stochastic Model of Bargaining

In this paper we consider multilateral stochastic bargaining models with general agreement rules. For n-player games where in each period a player is randomly selected to allocate a stochastic level of surplus and q?n players have to agree on a proposal to induce its acceptance, we characterize the set of stationary subgame perfect equilibrium payoffs and establish their existence. We show that for agreement rules other than the unanimity rule, the equilibrium payoffs need not be unique. Furthermore, even when the equilibrium is unique, it need not be efficient. Journal of Economic Literature Classification Numbers: C73, C78, D70.     

Majority voting with stochastic preferences: The whims of a committee are smaller than the whims of its members

This note studies the volatility of the policy chosen by a committee whose members’ preferences are volatile, due to common and individual preferences shocks. It is shown that majority voting mitigates the latter but not the former. The volatility of the policy is smaller the smaller the volatility of members’ preferences, smaller the larger the size of the committee, and smaller than if it was chosen by a single member. The results hold in a context of uncertainty and with multidimensional issues.

知识产权保护的帕雷托改进——组建国家知识产权经营管理公司的设想

对知识产权盗用行为的博弈分析和预期成本收益分析证明,在保护知识产权上,降低知识产权使用费和加速知识产权贬值同加大监督惩罚等手段一样重要。而传统知识和国有知识产权都存在产权不明晰的问题,导致保护不力。组建国家知识产权经营管理公司是知识产权保护的帕雷托改进方案。     

从帕累托标准看我国土地制度改革方式取向

土地制度改革是改革土地现有的权利义务关系，通过土地权利的让渡实现资源配置，促进农村生产力的发展。所以，应在土地所有制上再造集体所有制并在此基础上实现土地使用权的自然流转，实现资源的优化配置。     

The fiscal sociology of Gino Borgatta: Pareto, extra-economic redistribution and economic growth

The purpose of this study is to establish the extent to whichBorgatta's early fiscal sociology is consistent with, and differentfrom, Vilfredo Pareto's critical views on fiscal theory. Particularemphasis is given to the treatment of the relationship between‘extra-economic’ redistribution, achieved throughfiscal measures, and economic growth. Since evidence of Pareto'sinfluence is much weaker in Borgatta's more mature studies,the ‘definitive’ Paretian fiscal sociology thatemerged in his early ‘Lo Studio Scientifico dei FenomeniFinanziari’ is investigated for possible indications ofwhy Borgatta did not subsequently develop fiscal studies furtheralong Paretian lines.     

层级结构合作博弈、帕累托改善悖论和中国经济制度变迁

以影响控制经济各个因素的作用的次序判断,1978年之前中国的经济制度为行政组织-法律道德因素-市场组织的层级结构,1984年为行政组织-市场组织-法律道德因素,2004年为市场组织-行政组织-法律道德因素,目前正向市场组织-法律道德因素-行政组织的层级结构变迁,且变迁的前两阶段为帕累托改善.但是经济制度变迁的层级结构合作博弈模型揭示:此利益结构变化平稳的变迁的难度将逐渐增大,并可能受到各种人为因素的扭曲、干扰和阻挠,陷入帕累托改善悖论.     

A generalization of Condorcet’s Jury Theorem to weighted voting games with many small voters

We extend Condorcet’s Jury Theorem (Essai sur l’application de l’analyse à la probabilité des décisions rendues à la pluralité des voix. De l’imprimerie royale, 1785) to weighted voting games with voters of two kinds: a fixed (possibly empty) set of ‘major’ voters with fixed weights, and an ever-increasing number of ‘minor’ voters, whose total weight is also fixed, but where each individual’s weight becomes negligible. As our main result, we obtain the limiting probability that the jury will arrive at the correct decision as a function of the competence of the few major players. As in Condorcet’s result the quota q = 1/2 is found to play a prominent role. I wish to thank Maurice Koster, Moshé Machover, Guillermo Owen and two anonymous referees for helpful comments.     

我国城市规模分布Pareto指数测算及影响因素分析

This paper estimates the Pareto exponent of the city size (population size and economy size) distribution, all provinces, and three regions in China in 1997, 2000 and 2003 by OLS, comparatively analyzes the Pareto exponent cross section and times, and empirically analyzes the factors which impacts on the Pareto exponents of provinces. Our analyses show that the size distributions of cities in China follow the Pareto distribution and are of structural features. Variations in the value of the Pareto exponent of city population size distribution are significantly explained by industrialization, industry structure and regional transportation infrastructure, and variations in the value the Pareto exponents of city economy size distribution are significantly explained by industrialization and regional transportation infrastructure. __________ Translated from Shuliang Jingji Jishu Jingji Yanjiu 数量经济技术经济研究 (The Journal of Quantitative & Technical Economics), 2007, (4): 43–52