by On the explanatory irrelevance of general equilibrium models The model itself seems to provide no indication of how to find out under which real conditions its nomological content … has explanatory relevance. The assertion that it has such relevance if the corresponding ‘assumptions’ are satisfied is either (1) a purely logical statement — that is, if these assumptions are to be identified with the supreme hypotheses of the system itself; (2) a highly problematic statement — if the explicit if-components (antecedent clauses) of these hypotheses are meant; or (3) a completely useless statement — if it refers to the so-far-unknown conditions under which the idealizations are true. div{float:left;margin-right:10px;} div.wpmrec2x div.u >
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Lars Pålsson Syll considers the following as important: Economics
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On the explanatory irrelevance of general equilibrium models
The model itself seems to provide no indication of how to find out under which real conditions its nomological content … has explanatory relevance. The assertion that it has such relevance if the corresponding ‘assumptions’ are satisfied is either (1) a purely logical statement — that is, if these assumptions are to be identified with the supreme hypotheses of the system itself; (2) a highly problematic statement — if the explicit if-components (antecedent clauses) of these hypotheses are meant; or (3) a completely useless statement — if it refers to the so-far-unknown conditions under which the idealizations are true.