TY - JOUR AU - Johnstone,Nick AU - Hascic,Ivan AU - Popp,David TI - Renewable Energy Policies And Technological Innovation: Evidence Based On Patent Counts JF - National Bureau of Economic Research Working Paper Series VL - No. 13760 PY - 2008 Y2 - January 2008 UR - http://www.nber.org/papers/w13760 L1 - http://www.nber.org/papers/w13760.pdf N1 - Author contact info: Nick Johnstone Empirical Policy Analysis Unit OECD Environment Directorate 2 rue Andre Pascal 75775 Paris Cedex 16 France www.oecd.org E-Mail: nick.johnstone@oecd.org Ivan Hascic Empirical Policy Analysis Unit OECD Environment Directorate 2 rue André Pascale 75775 Paris Cedex 16 France www.oecd.org E-Mail: Ivan.Hascic@oecd.org David Popp Department of Public Administration and International Affairs 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 - This paper examines the effect of environmental policies on technological innovation in the specific case of renewable energy. The analysis is conducted using patent data on a panel of 25 countries over the period 1978-2003. It is found that public policy plays a significant role in determining patent applications. Different types of policy instruments are effective for different renewable energy sources. ER -