A spatial voting model where proportional rule leads to two-party equilibria
In this paper we show that in a simple spatial model where the government is chosen under strict proportional rule, if the outcome function is a linear combination of parties' positions, with coefficients equal to their share of seats, only a two-party voting equilibrium basically exists. The two parties taking a positive number of votes are the two extremist ones. Applications of this result include an extension of the well-known Alesina and Rosenthal's model of divided government as well as a modified version of Besley and Coate's model of representative democracy. This result cannot be extended to a general outcome function but, however, when the policy is determined by the two leading parties, in pure strategies, only two-party equilibria can emerge. Analogous result holds for coalitions of parties.
|Date of creation:||00 Jul 2000|
|Contact details of provider:|| Postal: Voie du Roman Pays 34, 1348 Louvain-la-Neuve (Belgium)|
Fax: +32 10474304
Web page: http://www.uclouvain.be/core
More information through EDIRC
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
- Ignacio OrtuÓo-OrtÎn, 1997. "A spatial model of political competition and proportional representation," Social Choice and Welfare, Springer;The Society for Social Choice and Welfare, vol. 14(3), pages 427-438.
- repec:cup:apsrev:v:89:y:1995:i:02:p:327-343_09 is not listed on IDEAS
- Francesco De Sinopoli, 2000.
"Sophisticated voting and equilibrium refinements under plurality rule,"
Social Choice and Welfare,
Springer;The Society for Social Choice and Welfare, vol. 17(4), pages 655-672.
- DE SINOPOLI, Francesco, "undated". "Sophisticated voting and equilibrium refinements under plurality rule," CORE Discussion Papers RP 1467, Université catholique de Louvain, Center for Operations Research and Econometrics (CORE).
- Roger B. Myerson & Robert J. Weber, 1988. "A Theory of Voting Equilibria," Discussion Papers 782, Northwestern University, Center for Mathematical Studies in Economics and Management Science.
- Elhanan Helpman & Gene M. Grossman, 1999. "Competing for Endorsements," American Economic Review, American Economic Association, vol. 89(3), pages 501-524, June.
- Grossman, G-M & Helpman, E, 1996. "Competing for Endorsements," Papers 182, Princeton, Woodrow Wilson School - Public and International Affairs.
- Grossman, G.M. & Helpman, E., 1998. "Competing for Endorsements," Papers 09-98, Tel Aviv.
- Grossman, Gene & Helpman, Elhanan, 1996. "Competing for Endorsements," CEPR Discussion Papers 1546, C.E.P.R. Discussion Papers.
- Gene M. Grossman & Elhanan Helpman, 1996. "Competing for Endorsements," Harvard Institute of Economic Research Working Papers 1784, Harvard - Institute of Economic Research.
- Timothy Besley & Stephen Coate, 1997. "An Economic Model of Representative Democracy," The Quarterly Journal of Economics, Oxford University Press, vol. 112(1), pages 85-114.
- Tim Besley & Stephen Coate, "undated". ""An Economic Model of Representative Democracy''," CARESS Working Papres 95-02, University of Pennsylvania Center for Analytic Research and Economics in the Social Sciences.
- Tim Besley & Stephen Coate, "undated". "An Economic Model of Representative Democracy," Penn CARESS Working Papers ecf70d639d700dba5327ab0c8, Penn Economics Department.
- repec:hrv:faseco:34222831 is not listed on IDEAS
- Alesina, Alberto & Rosenthal, Howard, 1996. "A Theory of Divided Government," Econometrica, Econometric Society, vol. 64(6), pages 1311-1341, November.
- repec:cup:apsrev:v:87:y:1993:i:01:p:102-114_09 is not listed on IDEAS
- repec:cup:apsrev:v:76:y:1982:i:04:p:753-766_18 is not listed on IDEAS
- Alesina, Alberto & Rosenthal, Howard, 2000. "Polarized platforms and moderate policies with checks and balances," Journal of Public Economics, Elsevier, vol. 75(1), pages 1-20, January.
- Austen-Smith, David & Banks, Jeffrey., 1987. "Elections, Coalitions, and Legislative Outcomes," Working Papers 643, California Institute of Technology, Division of the Humanities and Social Sciences. Full references (including those not matched with items on IDEAS)
When requesting a correction, please mention this item's handle: RePEc:cor:louvco:2000037. See general information about how to correct material in RePEc.
For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (Alain GILLIS)
If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.
If references are entirely missing, you can add them using this form.
If the full references list an item that is present in RePEc, but the system did not link to it, you can help with this form.
If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your profile, as there may be some citations waiting for confirmation.
Please note that corrections may take a couple of weeks to filter through the various RePEc services.