Following the Global Crisis, some countries increased expenditures on research and development (R&D) to address secular stagnation. This column investigates how successful this rise in R&D scale was in supporting productivity growth in Japan and other advanced economies. It argues that R&D efficiency has declined in many of these countries in the past decade, compared to the preceding ten years. This suggests that increasing R&D spending is not enough to foster growth, and that countries need to do more to support innovation and collaboration in carefully chosen sectors.
Tsutomu Miyagawa, Takayuki Ishikawa