The American Economist, Vol. 42, No. 1 (Spring, 1998), pp. 42-55 (14 pages) This paper investigates rivalry in R&D expenditures for firms within the U. S. Automobile industry. It attempts to falsify ...
This is a preview. Log in through your library . Abstract The practice of comparing alternative models is very common in applied econometrics and often involves non—nested specifications as well as ...