NATIONAL BUREAU OF ECONOMIC RESEARCH
NATIONAL BUREAU OF ECONOMIC RESEARCH

Research and Development and Intraindustry Spillovers: An Empirical Application of Dynamic Duality

Jeffrey I. Bernstein, M. Ishaq Nadiri

NBER Working Paper No. 2002 (Also Reprint No. r1283)
Issued in August 1986
NBER Program(s):   PR

In this paper we estimate a model of production and investment based on the theory of dynamic duality and are particularly Interested in the effects of R&D spillovers and in calculating the social and private rates of return. We identify and estimate three effects associated with the intraindustry R&D spillover. First, costs decline as knowledge expands for the externality-receiving firms. Second, production structures are affected, as factor demands change in response to the spillover. Third, the rates of capital accumulation are affected by the R&D spillover. These cost-reducing, factor-biasing and capital adjustment effects of the spillover are estimated for four industries. The existence of R&D spillovers implies that the social and private rates of return to R&D capital differ. We estimate that the social return exceeds the private return in each industry. However, there is significant variation across industries in the differential between the social and private rates of return.

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Document Object Identifier (DOI): 10.3386/w2002

Published: Review of Economic Studies, Vol. 56, pp. 249-269, (April 1989). citation courtesy of

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