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Economic models as analogies

Author

Listed:
  • I. Gilboa
  • A. Postlewaite
  • L. Samuelson
  • D. Schmeidler

Abstract

People often wonder why economists analyse models whose assumptions are known to be false, while economists feel that they learn a lot from such exercises. We suggest that part of the knowledge generated by academic economists is case-based rather than rule-based. That is, instead of offering general rules or theories that should be contrasted with data, economists often analyse modelsthat are ‘theoretical cases′, which help understand economic problems by drawinganalogies between the model and the problem. Thus, economic models, empiricaldata, experimental results and other sources of knowledge are all on equal footing, that is, they all provide cases to which a given problem can be compared. We offer complexity arguments that explain why case-based reasoning may sometimes be the method of choice and why economists prefer simple cases.

Suggested Citation

  • I. Gilboa & A. Postlewaite & L. Samuelson & D. Schmeidler, 2015. "Economic models as analogies," Voprosy Ekonomiki, NP Voprosy Ekonomiki, issue 4.
    • Handle: RePEc:nos:voprec:y:2015:id:71
    DOI: 10.32609/0042-8736-2015-4-106-130
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    References listed on IDEAS

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    JEL classification:

    • B40 - Schools of Economic Thought and Methodology - - Economic Methodology - - - General
    • B41 - Schools of Economic Thought and Methodology - - Economic Methodology - - - Economic Methodology

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