Marketing models are often intended to guide managers to make decisions. In this rejoinder, the author reviews three questions that must be addressed before a model can be established as useful for policy analysis.

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Keywords endogeinity, expectations, model diagnostics
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Series ERIM Top-Core Articles
Journal Journal of Marketing Research
Franses, Ph.H.B.F. (2005). Diagnostics, expectations and endogeneity. Journal of Marketing Research (Vol. 42, pp. 27–29). doi:10.1509/jmkr.