Dechezleprêtre, Antoine; Glachant, Matthieu; Hascic, Ivan - HAL - 2011
1990 innovation was driven mostly by energy prices. Since then, environmental policies, and, more recently, climate … policies, have accelerated the pace of innovation. The data also indicate that innovation is highly concentrated in three … countries-Japan, Germany, and the United States-which together account for 60 percent of total inventions. Surprisingly, the …