This study examines Japan’s labor shortage, tracing it from cyclical tightness in the early 1970s and the late-1980s/early-1990s bubble to a structural shortfall since the mid-2010s driven by the sustained contraction of the working-age population. Earlier episodes were demand-led and policy-induced (for example, the transition to a 40-hour work week), whereas today’s tightness is demographic in origin and therefore persistent. Chapter 2 details these dynamics and the underlying structural constraints.

To manage this challenge, Japan’s policy response combines mobilization of domestic labor—most notably rising participation by women and older workers—with an expanded intake of foreign workers. The foreign-resident population grew from roughly 2.09 million in 2014 to about 3.59 million in 2024, with rapid increases in Technical Intern Trainees and Specified Skilled Workers. These increases reflect domestic drivers—population aging and acute shortages in care, hospitality, construction, etc.—as well as international forces, including a surge in Asia-centered labor migration and policy shifts. Chapter 3 assesses Japan's policy efforts to engage women and older workers into the labor market, while Chapter 4 reviews the theory, history, and practice of international labor migration in Asia. Chapter 5 disaggregates Japan’s foreign-worker regime into three pillars—high-skilled channels, the Technical Intern Training Program, and the Specified Skilled Worker system—and evaluates their policy design, outcomes, and outstanding issues. Chapter 6 assesses integration through wages and social-insurance coverage as indicators of how well foreign workers are settling into Japanese labor markets and society.

This study sets out the following policy implications for Korea. For older workers, Japan’s experience shows the effectiveness of gradual, sequenced reform—phased extensions of employment guarantees—backed by targeted subsidies, sustained social dialogue, and flexible compliance options for firms. Firm-level transparency and action plans, combined with workplace redesign, childcare provision, and well-targeted grants, have helped lift women’s participation. On foreign workers, Japan and Korea should streamline its fragmented governance and build a more efficient architecture for lower-skilled pathways, with clear skill-progression ladders that link training and language support to advancement in wages and roles. Korea should also better leverage international students by smoothing school-to-work transitions and strengthening settlement support. Finally, Japan and Korea could co-lead rules-based cooperation with major sending countries to stabilize flows and alleviate persistent shortages.