Productivity Research Notes
Productivity Research Notes (PRN) is a series of concise analytical briefs, each designed as a self-contained analysis typically presented in a two-page format, produced by the Keio Economic Observatory (KEO), Keio University, Tokyo, focusing on productivity and economic performance in Asia. It highlights key measurement issues, empirical findings, and policy-relevant insights, and serves as a platform to communicate selected results from the APO Productivity Databook/Database and related research activities at KEO, including APDB, AQALI, ANRD, ECM, and related analytical resources. [zenodo] [Nomura Lab]
| No. | Date | Author(s) | Title | Keywords |
|---|---|---|---|---|
| 2615 (pdf) |
2026-06-14 | Nomura, K. | Broad Gains, Flat Aggregate: Industrial Structure and Japan’s Energy Productivity to 2040
DOI:10.5281/zenodo.20686283 |
Energy productivity, Industrial structure, Structural change, Carbon leakage, Energy-related emissions |
| 2614 (pdf) |
2026-06-04 | Nomura, K. | China’s Housing-Service Revision: Reconciling Official Statistics and International Productivity Databases
DOI:10.5281/zenodo.20534702 |
Owner-occupied housing services, National accounts revision, Rental-equivalence approach, International productivity comparisons, China |
| 2613 (pdf) |
2026-06-02 | Nomura, K. & Suga, Y. |
Intangible Expansion and Capital Quality: Implications of the 2020 Benchmark Revision in Japan
DOI:10.5281/zenodo.20508867 |
Software investment, Capital services, Capital quality, Growth accounting, TFP, Japan |
| 2612 (pdf) |
2026-05-22 | Nomura, K. & Tatsumi, N. |
AI Deployment and Productivity: Why Productivity Diffusion Takes Time
DOI:10.5281/zenodo.20337965 |
AI, Productivity diffusion, Organizational capital, TFP, Measurement bias |
| 2611 (pdf) |
2026-05-14 | Ho, M.S., Nomura, K., & Samuels, J.D. |
Quality Adjustment and PPP: A Fundamental Caveat in Productivity Comparisons
DOI:10.5281/zenodo.20173436 |
PPP, Quality adjustment, Price measurement, Productivity comparison, Real output |
| 2610 (pdf) |
2026-05-08 | Nomura, K. | Importing Bits, Not Watts: AI Infrastructure and Japan’s Electricity Constraint
DOI:10.5281/zenodo.20079967 |
AI, Electricity infrastructure, Data centers, Computational trade, Industrial productivity |
| 2609 (pdf) |
2026-05-05 | Nomura, K. & Inaba, S. |
Energy Cost Divergence and Industrial Adjustment: Evidence from Germany and Japan
DOI:10.5281/zenodo.20035252 |
Energy cost divergence, EITE industries, Industrial adjustment, Production relocation, Productivity measurement |
| 2608 (pdf) |
2026-04-18 | Nomura, K. | Product Tax Measurement, GDP Revision, and Productivity: Evidence from Fiji
DOI:10.5281/zenodo.19639973 |
Product taxes, GDP rebasing, Factor income shares, TFP, Fiji |
| 2607 (pdf) |
2026-04-13 | Nomura, K. & Ho, M.S. |
Revisiting India’s Growth Pattern: GDP Rebasing and the Decline in Consumption Share
DOI:10.5281/zenodo.19546984 |
GDP rebasing, Household consumption, Demand composition, Supply–use tables, India |
| 2606 (pdf) |
2026-04-09 | Nomura, K. & Inaba, S. |
Mismeasuring Productivity in Resource-Rich Economies: Evidence from Saudi Arabia
DOI:10.5281/zenodo.19481318 |
Mineral and energy resources (MER), TFP, Resource depletion, Saudi Arabia |
| 2605 (pdf) |
2026-04-04 | Nomura, K. | Income Concepts and Productivity: Separating Production from Asset Revaluation and Its Implications for TFP
DOI:10.5281/zenodo.19416765 |
TFP, Income concepts, Asset revaluation, SNA, User cost of capital |
| 2604 (pdf) |
2026-03-31 | Nomura, K. | Measuring Labor Share in Economies without COE: A Bottom-Up Approach in Vietnam
DOI:10.5281/zenodo.19353738 |
Labor share, TFP, Growth accounting, Vietnam |
| 2603 (pdf) |
2026-03-30 | Nomura, K. | Beyond Energy Prices: Strait Closure Risk in Asian Supply Chains, with Evidence from Energy Productivity
DOI:10.5281/zenodo.19336588 |
Energy security, Strait closure, Supply chains, Energy productivity |
| 2602 (pdf) |
2026-03-27 (Revised: 2026-06-14) |
Nomura, K. | Can AI Revive Japan's Productivity?: Technology Implementation Scenario to 2040
DOI:10.5281/zenodo.19269293 |
AI, TFP, Technology implementation, Structural change |
| 2601 (pdf) |
2026-03-27 | Nomura, K. & Ho, M.S. |
Reshaping Asia's Economic Landscape: PPP Revisions and Level Comparisons
DOI:10.5281/zenodo.19268216 |
PPP, ICP revisions, Level comparison |