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...

The recent literature on preferential trade agreements (PTAs) emphasizes the distinction between the extensive and intensive margins. What has been missing is the distinction between tariff and non-tariff changes under PTAs. Tariff reduction is a quintessential feature of PTAs. But member...

This paper quantitatively examines the effects of aging on labor productivity using individual worker data in Korea. We find that attainment of information and communications technology (ICT) skills and participation in job-related training can help older workers stay productive. The estimation...

In a seminal paper, Helpman et al. (2008) demonstrate that accounting for self-selection and firm heterogeneity is crucial for obtaining unbiased estimates in the gravity equation. In this paper, we show how this insight helps solve the trade elasticity puzzle that, hitherto, trade elasticity...

This paper analyzes the future growth potential of the North Korean economy, conditional on economic reform and integration with South Korea. The growth projections based on cross-country evidence show that, if North Korea embarks on substantial policy reforms toward a market-oriented and open...