Wisdom of the Crowd? Information Aggregation in Representative Democracy

Prato, Carlo and Wolton, Stephane (2017): Wisdom of the Crowd? Information Aggregation in Representative Democracy.

Abstract

In representative democracy, voters elect candidates who strategically propose policies. In a common value environment with imperfectly informed voters and candidates, we establish that intermediation by candidates can render information aggregation unfeasible even when a large electorate presented with exogenous options would almost always select the correct policy. In fact, the possibility of information aggregation encourages candidates' conformism and stifles the competition among ideas. Neither liberalizing access to candidacy nor introducing additional frictions in voters information guarantees feasible information aggregation. Thus, the political failure we uncover is due to the intermediation by candidates---that is, the nature of representative democracy.

• Item Type: MPRA Paper
• Language: English
• Keywords: Elections, Information Aggregation, Access to Candidacy, Restrictions to Candidacy
• Subjects: D - Microeconomics > D7 - Analysis of Collective Decision-Making > D70 - General; D - Microeconomics > D7 - Analysis of Collective Decision-Making > D72 - Political Processes: Rent-Seeking, Lobbying, Elections, Legislatures, and Voting Behavior; D - Microeconomics > D8 - Information, Knowledge, and Uncertainty > D82 - Asymmetric and Private Information ; Mechanism Design; D - Microeconomics > D8 - Information, Knowledge, and Uncertainty > D83 - Search ; Learning ; Information and Knowledge ; Communication ; Belief ; Unawareness

References

Acharya, Avidit and Adam Meirowitz, "Sincere voting in large elections," Games and Economic Behavior, 2017, 101, 121-131.

Ali, S Nageeb, Maximilian Mihm, and Lucas Siga, "The Perverse Politics of Polarization," 2017.

Austen-Smith, David and Jeffrey S Banks, "Information aggregation, rationality, and the Condorcet jury theorem," American political science review, 1996, 90 (01), 34-45.

Aytimur, R Emre and Christian Bruns, "On ignorant voters and busy politicians," 2015.

Barelli, Paulo, Sourav Bhattacharya, and Lucas Siga, "On the possibility of information aggregation in large elections," 2017.

Battaglini, Marco, "Public protests and policy making," The Quarterly Journal of Economics,2017, 132 (1), 485-549.

Bernhardt, Dan, John Duggan, and Francesco Squintani, "The case for responsible parties," American Political Science Review, 2009, 103 (4), 570-587.

Besley, Timothy and Stephen Coate, "An economic model of representative democracy," The Quarterly Journal of Economics, 1997, 112 (1), 85-114.

Bhattacharya, Sourav, "Condorcet Jury Theorem in a Spatial Model of Elections," Technical Report, Mimeo 2013.

Bhattacharya, Sourav, "Preference monotonicity and information aggregation in elections," Econometrica, 2013, 81 (3), 1229-1247.

Bond, Philip and Hulya Eraslan, "Strategic voting over strategic proposals," The Review of Economic Studies, 2010, 77 (2), 459-490.

Campbell, Angus, Philip E Converse, Warren E Miller, and Donald E Stokes, The american voter, University of Chicago Press, 1980.

Carpini, Michael X Delli and Scott Keeter, What Americans know about politics and why it matters, Yale University Press, 1996.

Castanheira, Micael, "Victory margins and the paradox of voting," European Journal of Political Economy, 2003, 19 (4), 817-841.

Castanheira, Micael, "Why vote for losers?," Journal of the European Economic Association, 2003, 1 (5), 1207-1238.

Feddersen, Timothy and Wolfgang Pesendorfer, "Voting behavior and information aggregation in elections with private information," Econometrica: Journal of the Econometric Society, 1997, 1029-1058.

Feddersen, Timothy J and Wolfgang Pesendorfer, "The swing voter's curse," The American economic review, 1996, 408-424.

Fey, Mark and Jaehoon Kim, "The swing voter's curse: comment," The American Economic Review, 2002, 92 (4), 1264-1268.

Gratton, Gabriele, "Pandering and electoral competition," Games and Economic Behavior, 2014, 84, 163-179.

Gul, Faruk and Wolfgang Pesendorfer, "Partisan politics and election failure with ignorant voters," Journal of Economic Theory, 2009, 144 (1), 146-174.

Kartik, Navin, Francesco Squintani, Katrin Tinn et al., "Information revelation and pandering in elections," Columbia University, New York, 2015.

Laslier, Jean-Francois and Karine Van der Straeten, "Electoral competition under imperfect information," Economic Theory, 2004, 24 (2), 419-446.

Lohmann, Susanne, "Information aggregation through costly political action," The American Economic Review, 1994, pp. 518-530.

Martinelli, Cesar, "Elections with privately informed parties and voters," Public Choice, 2001, 108 (1), 147-167.

Martinelli, Cesar, "Would rational voters acquire costly information?," Journal of Economic Theory, 2006, 129 (1), 225-251.

Matejka, Filip and Guido Tabellini, "Electoral competition with rationally inattentive voters," 2016.

McMurray, Joseph, "Voting as communicating: Mandates, multiple candidates, and the signaling voter's curse," Games and Economic Behavior, 2017, 102, 199-223.

McMurray, Joseph C, "Aggregating information by voting: The wisdom of the experts versus the wisdom of the masses," The Review of Economic Studies, 2012.

McMurray, Joseph C, "Polarization and Pandering in Common-value Elections," Brigham Young University. Manuscript, 2017.

Meirowitz, Adam, "Polling games and information revelation in the Downsian framework," Games and Economic Behavior, 2005, 51 (2), 464-489.

Meirowitz, Adam and Kenneth W Shotts, "Pivots versus signals in elections," Journal of Economic Theory, 2009, 144 (2), 744-771.

Myatt, David P, "A theory of protest voting," The Economic Journal, 2016.

Myerson, Roger B, "Extended Poisson games and the Condorcet jury theorem," Games and Economic Behavior, 1998, 25 (1), 111-131.

Osborne, Martin J and Al Slivinski, "A model of political competition with citizencandidates," The Quarterly Journal of Economics, 1996, 111 (1), 65-96.

Piketty, Thomas, "Voting as communicating," The Review of Economic Studies, 2000, 67 (1), 169-191.

Razin, Ronny, "Signaling and election motivations in a voting model with common values and responsive candidates," Econometrica, 2003, 71 (4), 1083-1119.

Shotts, Kenneth W, "A signaling model of repeated elections," Social choice and Welfare, 2006, 27 (2), 251-261.

Szentes, Balazs and Yukio Koriyama, "A resurrection of the Condorcet Jury Theorem," Theoretical Economics, 2009, 4 (2), 227-252.

Wit, Jorgen, "Rational choice and the Condorcet jury theorem," Games and Economic Behavior, 1998, 22 (2), 364-376.