American Economic Review: Vol. 92 No. 1 (March 2002)


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Induced Innovation and Energy Prices

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Popp, David. 2002. "Induced Innovation and Energy Prices ." American Economic Review, 92(1): 160-180.

DOI: 10.1257/000282802760015658


I use U.S. patent data from 1970 to 1994 to estimate the effect of energy prices on energy-efficient innovations. Using patent citations to construct a measure of the usefulness of the existing base of scientific knowledge, I consider the effect of both demand-side factors, which spur innovative activity by increasing the value of new innovations, and supply-side factors, such as scientific advancements that make new innovations possible. I find that both energy prices and the quality of existing knowledge have strongly significant positive effects on innovation. Furthermore, I show that omitting the quality of knowledge adversely affects the estimation results. (JEL O31, Q40, Q42)

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Popp, David (Department of Public Administration, Center for Environmental Policy Administration, the Maxwell School, Syracuse University, 400 Eggers Hall, Syracuse, NY13244, US)

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