Japan’s Innovation Challenge: Escaping the Middle-Technology Trap

Dany Bahar, Shreyas Gadgin Matha, Ricardo Hausmann and Santiago Segovia
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Santiago Segovia: Harvard's Growth Lab

No 269, Growth Lab Working Papers from Harvard's Growth Lab

Abstract: Japan remains one of the world’s most technologically sophisticated economies, yet its labor productivity has been stagnant for more than two decades. This paper investigates the apparent contradiction between Japan’s high R&D intensity and its weak productivity performance by examining the allocation, composition, and effectiveness of innovation across industries. Using industry-level data from the OECD, patent-level data linked across technology and industry classifications, and a set of nine technological taxonomies, we document that Japan disproportionately concentrates R&D in mid-technology manufacturing sectors—such as motor vehicles, electrical equipment, and chemicals—that generate relatively low productivity spillovers. High-technology sectors, including ICT, pharmaceuticals, scientific R&D, and advanced digital services, receive a significantly smaller share of investment and exhibit much higher productivity contributions in other countries. We further show that Japan’s indirect, tax-based system of R&D support reinforces this equilibrium by favoring large incumbents and under-supporting SMEs. We conclude by assessing the potential of Japan’s new 17-sector strategy to reorient the innovation system toward frontier technologies.

Keywords: Japan; innovation; industrial policy (search for similar items in EconPapers)
Date: 2026-05
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