Optimal Gerrymandering: Sometimes Pack, but Never Crack
Abstract
Standard intuitions for optimal gerrymandering involve concentrating one's extreme opponents in "unwinnable" districts ("packing") and spreading one's supporters evenly over "winnable" districts ("cracking"). These intuitions come from models with either no uncertainty about voter preferences or only two voter types. In contrast, we characterize the solution to a problem in which a gerrymanderer observes a noisy signal of voter preferences from a continuous distribution and creates N districts of equal size to maximize the expected number of districts she wins. Under mild regularity conditions, we show that cracking is never optimal—one's most ardent supporters should be grouped together. Moreover, for sufficiently precise signals, the optimal solution involves creating a district that matches extreme "Republicans" with extreme "Democrats," and then continuing to match toward the center of the signal distribution. (JEL D72)Download Info
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Bibliographic Info
Article provided by American Economic Association in its journal American Economic Review.
Volume (Year): 98 (2008)
Issue (Month): 1 (March)
Pages: 113-44
Note: DOI: 10.1257/aer.98.1.113
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Related research
Keywords:Find related papers by JEL classification:
- D72 - Microeconomics - - Analysis of Collective Decision-Making - - - Political Processes: Rent-seeking, Lobbying, Elections, Legislatures, and Voting Behavior
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Citations
Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.Cited by:
- Puppe, Clemens & Tasnádi, Attila, 2009. "Optimal redistricting under geographical constraints: Why "pack and crack" does not work," Economics Letters, Elsevier, vol. 105(1), pages 93-96, October.
- Ebonya L. Washington, 2011. "Do Majority Black Districts Limit Blacks’ Representation? The Case of the 1990 Redistricting," NBER Working Papers 17099, National Bureau of Economic Research, Inc.
- Faruk Gul & Wolfgang Pesendorfer, 2007. "Competitive Redistricting," Levine's Bibliography 321307000000000748, UCLA Department of Economics.
- Wolfgang Pesendorfer & Faruk Gul, 2007.
"Strategic Redistricting,"
Levine's Bibliography
843644000000000351, UCLA Department of Economics.
- Faruk Gul & Wolfgang Pesendorfer, 2010. "Strategic Redistricting," American Economic Review, American Economic Association, vol. 100(4), pages 1616-41, September.
- Emanuele Bracco, 2011. "Optimal Districting with Endogenous Party Platforms," Working Papers 616564, Lancaster University Management School, Economics Department.
- Coate, Stephen & Knight, Brian, 2007.
"Socially Optimal Districting: A Theoretical and Empirical Exploration,"
Working Papers
07-06, Cornell University, Center for Analytic Economics.
- Stephen Coate & Brian Knight, 2007. "Socially Optimal Districting: A Theoretical and Empirical Exploration," The Quarterly Journal of Economics, MIT Press, vol. 122(4), pages 1409-1471, November.
- Puppe, Clemens & Tasnádi, Attila, 2011. "Axiomatic districting," Working Paper Series in Economics 24, Karlsruhe Institute of Technology (KIT), Department of Economics and Business Engineering.
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