TY - JOUR AU - Popp,David TI - Induced Innovation and Energy Prices JF - National Bureau of Economic Research Working Paper Series VL - No. 8284 PY - 2001 Y2 - May 2001 UR - http://www.nber.org/papers/w8284 L1 - http://www.nber.org/papers/w8284.pdf N1 - Author contact info: David Popp Associate Professor of Public Administration Syracuse University The Maxwell School 426 Eggers Hall Syracuse, NY 13244-1020 Tel: 315/443-2482 Fax: 315/443-1081 E-Mail: dcpopp@maxwell.syr.edu AB - 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. ER -