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 ...

A model for world crude oil and natural gas markets is estimated. It confirms low price and high income elasticities of demand for both crude oil and natural gas, which explains the market power of ...

This paper presents new models for simultaneous relationships among endogenous categorical variables. Previous investigators have argued that the loglinear/logit framework is insufficiently rich for ...