Popp, David; Newell, Richard - In: Energy Economics 34 (2012) 4, pp. 980-991
patent citations to compare the social value of alternative energy research to other types of R&D that may be crowded out …. Beginning at the industry level, we find no evidence of crowding out across sectors—that is, increases in energy R&D do not draw … energy R&D. Linking patent data and financial data by firm, we ask whether an increase in alternative energy patents leads to …