On the hidden thought experiments of economic theory

Johanna Thoma

LSE Research Online Documents on Economics from London School of Economics and Political Science, LSE Library

Abstract: Most papers in theoretical economics contain thought experiments. They take the form of more informal bits of reasoning that precede the presentation of the formal, mathematical models these papers are known for. These thought experiments differ from the formal models in various ways. In particular, they do not invoke the same idealized assumptions about the rationality, knowledge and preferences of agents. The presence of thought experiments in papers that present formal models, and the fact that they differ from the formal models in this way are often ignored in debates on what, if anything, we can learn from formal models in theoretical economics. I show that paying due attention to thought experiments in theoretical economics has serious implications for this debate. Differences between thought experiments and formal models are especially problematic for Sugden’s ‘credible worlds’ account.

Keywords: Economic Models; Thought Experiments; Credibility; Idealization (search for similar items in EconPapers)
JEL-codes: J1 (search for similar items in EconPapers)
Date: 2016-03-01
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Citations: View citations in EconPapers (1)

Published in Philosophy of the Social Sciences, 1, March, 2016, 46(2), pp. 129-146. ISSN: 1552-7441

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