آناتومي تقاضا براي خودرو

Demand Anatomy for Automobile

In this article we argue that for the estimation of a valid econometrics relation, an economic theory is indispensable. In many cases, it has been observed that statistical relations have been introduced as an econometric model. The main idea is that an econometric model relays heavily on economic theory, and ignoring the relevant economic theory underlying the observed relationship frequently gives rise to a nonessential model specification. The data of National Account are based on economic theory. An econometric model which uses the National Account data has to follow the basic principles of economic models which are "econometric" theories. Therefore, it is argued that many so called theories published in economic journals do not follow economic theories and therefore are fundamentally flawed. We have used the demand for automobiles to clarify this point further.