This article is in three parts: in the first section, a real case of laboratory experimentation in economics illustrates what experimentalists do in order to test the external validity of their results. Then, it is shown that such a practice presupposes a specific conception of the causal relations economists are seeking. Some general remarks about the notions of external validity and parallelism are provided in conclusion.
The problem of external validity (or "parallelism") in experimental economics / F. Guala. - In: SOCIAL SCIENCE INFORMATION. - ISSN 0539-0184. - 38:4(1999), pp. 555-573.
The problem of external validity (or "parallelism") in experimental economics
F. GualaPrimo
1999
Abstract
This article is in three parts: in the first section, a real case of laboratory experimentation in economics illustrates what experimentalists do in order to test the external validity of their results. Then, it is shown that such a practice presupposes a specific conception of the causal relations economists are seeking. Some general remarks about the notions of external validity and parallelism are provided in conclusion.
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