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A Seemingly Unrelated Regression Model for Analyzing Multiparty Elections

Published online by Cambridge University Press:  04 January 2017

John E. Jackson*
Affiliation:
Department of Political Science, University of Michigan, 611 Church St. Ann Arbor, MI 48104. e-mail: jjacksn@umich.edu

Abstract

This paper develops an estimator for models of election returns in multiparty elections. It shares the same functional formas the Katz—King estimator but is computationally simpler, can be used with any number of parties, and is based on more conventional distributional assumptions. Small sample properties of the estimator are derived, which makes it particularly useful in many of the applications where there are a relatively small number of voting districts. The distributional assumptions are contained in two elements. The first treats the observed votes as the outcomes resulting from sampling the voters in each district. The second stochastic element arises from the usual treatment of the stochastic term in a regression model, namely, the inability of the included variables and the linear form to match the underlying process perfectly. The model is then used to analyze the 1993 Polish parliamentary elections. The results from this analysis are used to develop Monte Carlo experiments comparing several different yet feasible estimators. The conclusion is that a number of accessible estimators, including the standard seemingly unrelated regression model and the Beck-Katz model with panel-corrected standard errors, are all good choices.

Type
Research Article
Copyright
Copyright © Political Methodology Section of the American Political Science Association 2002 

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References

Beck, Nathaniel, and Katz, Jonathan. 1995. “What to Do (and Not to Do) with Time Series Cross-Section Data.” American Political Science Review 89:634647.Google Scholar
Greene, William H. 1993. Econometric Analysis, 2nd ed. New York: Macmillan.Google Scholar
Honaker, James, Katz, Jonathan N., and King, Gary. 2002. “A Fast, Easy, and Efficient Estimator for Multiparty Electoral Data.” Political Analysis 10:84100.Google Scholar
Jackson, John E., Klich, Jacek, and Poznańska, Krystyna. 2001. “Economic Transition and Elections in Poland.” Paper presented to the CEPR/WDI Annual International Conference on Transition Economies, Portoroz, Slovenia, June 2001.Google Scholar
Judge, George G., Carter Hill, R., Griffiths, William E., Lütkepohl, Helmut, and Lee, Tsoung-Chao. 1988. Introduction to the Theory and Practice of Econometrics, 2nd ed. New York: John Wiley and Sons.Google Scholar
Katz, Jonathan, and King, Gary. 1999. “A Statistical Model for Multiparty Electoral Data.” American Political Science Review 93:1532.CrossRefGoogle Scholar
Mikhailov, Nikolai, Niemi, Richard G., and Weimer, David L. 2002. “Application of Thiel Group Logit Methods to District Level Vote Shares: Tests of Prospective and Retrospective Voting in the 1991, 1993, and 1997 Polish Elections.” Electoral Studies (in press).Google Scholar
Theil, Henri. 1970. “On the Estimation of Relationships Involving Qualitative Variables.” American Journal of Sociology 76:103154.Google Scholar
Tomz, Michael, Tucker, Joshua A., and Wittenberg, Jason. 2002. “An Easy and Accurate Regression Model for Multiparty Electoral Data.” Political Analysis 10:6683.Google Scholar
Zellner, Arnold. 1962. “An Efficient Method of Estimating Seemingly Unrelated Regressions and Tests of Aggregation Bias.” Journal of the American Statistical Association 57:500509.Google Scholar
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