Comparative Statics with Concave and Supermodular Functions
AbstractCertain problems in comparative statics, including (but not exclusively) certain problems in consumer theory, cannot be easily addressed by the methods of lattice programming. One reason for this is that there is no order on the choice space which orders choices in a way which conforms with the comparison desired, and which also orders constraint sets in the strong set order it induces. The objective of this paper is to show how lattice programming theory can be extended to deal with situations like these. We show that the interaction of concavity and supermodularity in objective or constraint functions yield a structure that is very useful for comparative statics.
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Bibliographic InfoPaper provided by Economics Group, Nuffield College, University of Oxford in its series Economics Papers with number 2004-W01.
Length: 45 pages
Date of creation: 06 Feb 2004
Date of revision:
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Web page: http://www.nuff.ox.ac.uk/economics/
Other versions of this item:
- John Quah, 2004. "Comparative Statics with Concave and Supermodular Functions," Economics Series Working Papers 2004-W01, University of Oxford, Department of Economics.
- John K.-H. Quah, 2004. "Comparative Statics with Concave and Supermodular Functions," Econometric Society 2004 North American Summer Meetings 358, Econometric Society.
- C61 - Mathematical and Quantitative Methods - - Mathematical Methods; Programming Models; Mathematical and Simulation Modeling - - - Optimization Techniques; Programming Models; Dynamic Analysis
- D11 - Microeconomics - - Household Behavior - - - Consumer Economics: Theory
- D21 - Microeconomics - - Production and Organizations - - - Firm Behavior: Theory
This paper has been announced in the following NEP Reports:
- NEP-ALL-2004-01-18 (All new papers)
- NEP-FIN-2004-01-18 (Finance)
- NEP-MAC-2004-01-18 (Macroeconomics)
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.:
- Quah, John K. -H., 2003. "Market demand and comparative statics when goods are normal," Journal of Mathematical Economics, Elsevier, vol. 39(3-4), pages 317-333, June.
- Milgrom, Paul & Shannon, Chris, 1994.
"Monotone Comparative Statics,"
Econometric Society, vol. 62(1), pages 157-80, January.
- Elena Antoniadou, 2007. "Comparative Statics for the Consumer Problem," Economic Theory, Springer, vol. 31(1), pages 189-203, April.
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