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distributed lag relationships based on single time-series of observations have been usually rather imprecise. The promise of panel …
Persistent link: https://www.econbiz.de/10012478174
This paper considers why the determinants of the inter- and intra-industry variance in R&D intensity in U.S. manufacturing differ markedly even though response parameters are similar across industries. A similar aggregation effect is noted by Grunfeld and Griliches (1960), and this paper gives...
Persistent link: https://www.econbiz.de/10012478804