Experiments in economics: External validity and the robustness of phenomena

Francesco Guala and Luigi Mittone

Journal of Economic Methodology, 2005, vol. 12, issue 4, 495-515

Abstract: External validity is the problem of generalizing results from laboratory to non-laboratory conditions. In this paper we review various ways in which the problem can be tackled, depending on the kind of experiment one is doing. Using a concrete example, we highlight in particular the distinction between external validity and robustness, and point out that many experiments are not aimed at a well-specified real-world target but rather contribute to a 'library of robust phenomena', a body of experimental knowledge to be applied case by case.

Keywords: experiments; methodology; theory and evidence; external validity; pure and applied science (search for similar items in EconPapers)
Date: 2005
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Citations: View citations in EconPapers (75)

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DOI: 10.1080/13501780500342906

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