This study examines how aging affects labor productivity using industry-level data of Japan and Korea. The analysis shows that, for both Japan and Korea, aging has positive effects on labor productivity when older workers are working in industries with a large share of information and communication technology (ICT) in the capital stock. We also find that, on average, older workers exert positive effects on labor productivity across all industries when they are low-educated in Japan and high-educated in Korea. In addition, a complementary effect between ICT capital and older workers is observed for both high- and low-educated workers in Japan but only for low-educated workers in Korea. The complementarity between ICT and old workers existed in both manufacturing and services industries of Korea and Japan.

这项研究使用日本和韩国的行业数据检验了老龄化如何影响劳动生产率。分析表明，对于日本和韩国，当老年工人在资本存量中信息和通信技术（ICT）份额很大的行业中工作时，老龄化对劳动生产率产生积极影响。我们还发现，平均而言，当日本的低学历者和韩国的高学历者对所有行业的劳动生产率产生积极影响。此外，在日本，高学历和低学历的工人都观察到ICT资本与老年工人之间的互补效应，而韩国只有低学历的工人。信息通信技术与老工人之间的互补性在韩国和日本的制造业和服务业中都存在。