Productivity growth in Japan, as in most advanced economies, has moderated. This paper finds supportive evidence for the important role of small and medium-sized enterprises (SMEs) in explaining Japan’s modest productivity growth. Results show a substantial dispersion in firm-level productivity growth across sectors and even across firms within the same sector. SMEs, on average, exhibit lower productivity growth than non-SMEs in Japan, with smaller and older SMEs showing particularly low productivity growth. Estimates suggest that boosting productivity growth in all of the worst-performing SMEs could improve overall productivity growth by up to 1.8 percentage points. The SME credit guarantee system, SME financing constraints, demographic factors, and lack of intangible capital investment are discussed as contributors to the slow productivity growth of Japan’s small and old SMEs.

Productivity growth in Japan, as in most advanced economies, has moderated. This paper finds supportive evidence for the important role of small and medium-sized enterprises (SMEs) in explaining Japan’s modest productivity growth. Results show a substantial dispersion in firm-level productivity growth across sectors and even across firms within the same sector. SMEs, on average, exhibit lower productivity growth than non-SMEs in Japan, with smaller and older SMEs showing particularly low productivity growth. Estimates suggest that boosting productivity growth in all of the worst-performing SMEs could improve overall productivity growth by up to 1.8 percentage points. The SME credit guarantee system, SME financing constraints, demographic factors, and lack of intangible capital investment are discussed as contributors to the slow productivity growth of Japan’s small and old SMEs.

Using industry- and micro-level data, this paper examines why Japan's productivity growth has been slow for such a long time and how it can be accelerated in the future. Japan's capital-gross domestic product ratio continued to increase after 1991, and this increase in the capital-gross domestic product ratio must have contributed to the decline in the rate of return on capital in Japan by decreasing the marginal productivity of capital. On the other hand, Japan's accumulation of information and communication technology capital and intangible investment was very slow. Compared with large firms, which enjoyed an acceleration in the total factor productivity growth in recent years, Japanese small- and medium-sized enterprises were left behind in information and communication technology capital and intangible investment, and their productivity growth has been very low. Furthermore, as large firms expanded their supply chains globally and relocated their factories abroad, research and development spillovers from large firms to small- and medium-sized enterprises seem to have declined.

Report identifying factors influencing productivity in the manufacturing industrial sector of Japan - outlines economic growth, heavy industry, light industry and service sector trends in output and employment during the 1960s and 1970s, considers changing patterns of demand, competitiveness, industrial policies and social value systems affecting productivity, and includes productivity policy recommendations. References and statistical tables.