In this paper we discuss recent advances in modeling and estimating dynamic factor demand models, and review the use of such models in analyzing the production structure, the determinants of variable and quasi-fixed factors, and productivity growth. The paper also discusses the traditional...

This paper presents estimates of the productivity and factor bias effects of interindustry Ramp;D spillovers for five high-tech industries. Each industry is distinguished as a separate spillover source. The industries are each affected by Ramp;D spillovers and are themselves spillover sources....