The Impact of US Export Controls on Korean Semiconductor Exports / Hanhin Kim and Jaehan Cho

This study empirically investigates the impact of recent US export controls on China on South Korea’s semiconductor exports. We analyze South Korean export data to shed light on the repercussions of US export restrictions on a third country. Our findings reveal a significant decline in Korean semiconductor exports following the October 2022 imposition of US controls. This decline was most pronounced in the memory, discrete devices, and discrete device components subsectors of the semiconductor industry. In addition, we observed a decrease in unit prices, especially for memory semiconductors, pointing to downward pressure on South Korea’s high-value-added semiconductor exports. These results provide some evidence of substantial negative impacts of US export controls on South Korea’s semiconductor industry, and particularly with regard to its high-tech products.

Trump Tariffs and Roundabout Trade / Tadashi Ito

Although there are many news articles of tariff dodging via the rerouting of made-in-China goods through third countries, relabeling these goods as made in Mexico or made in Vietnam, there have been no scientific studies on this issue. This paper provides statistical evidence regarding whether such practices are taking place. Using monthly trade statistics at the most disaggregated level and analyzing data up to 2019, the year before the COVID-19 shock, little evidence of roundabout trade is found. With an extended dataset up to 2023, overall there is little sign of roundabout trade, although some slight signs of roundabout trade are found for Mexico and Vietnam.

Experts to the US and Imports from China during the US-China Tariff War: Evidence from Regional Trade Data in Vietnam / Kazunobu Hayakawa

This study empirically investigates how the exports of downstream products to the US change the imports of their upstream products from China during the US-China tariff war. To accomplish this, we use province-level trade data in Vietnam, known to be a country that increased its exports to the US market in place of China, i.e., known to enjoy a trade diversion in the US market. The use of regional trade data enables us to capture the input-output linkages more precisely. Specifically, focusing on the trade in general and electrical machinery industries from January of 2019 to December of 2023, we regress imports of upstream products from China on exports of their downstream products to the US, finding that the rise of exports of downstream products to the US significantly increases imports of their upstream products from China. On the other hand, the rise in these products does not significantly increase the imports of upstream products from Japan, Korea, and Taiwan. Furthermore, the inputoutput linkage between exports to the US and imports from China was found to be greater in provinces with better business environments in terms of entry costs, transparency in public services, and public support to businesses.

Economic Effects of Unemployment Insurance for Entrepreneurs in South Korea / Jiyeon Kim

This paper aims to examine the economic impact of the implementation of an unemployment insurance (UI) program for entrepreneurs in South Korea. Despite facing labor market risks similar to paid employees, entrepreneurs are often not eligible for UI in many countries. South Korea, where entrepreneurs represent over 20% of the workforce, is considering a design of UI for entrepreneurs, with the goal of providing coverage to this group by 2025. This study examines how the addition of UI for entrepreneurs would impact the economy using a model of entrepreneurship based on a search and matching framework. The study’s findings suggest that the implementation of UI for entrepreneurs would lead to increased business closures and reduced hiring, resulting in a slack labor market, which in turn would reduce social welfare overall. However, social welfare can be improved by subsidizing UI contributions paid by entrepreneurs, which provides the greatest improvement in social welfare compared to other social protection systems such as unemployment assistance.

The Impact of US Export Controls on Korean Semiconductor Exports / Hanhin Kim and Jaehan Cho
　Ⅰ. Introduction
　Ⅱ. Background
　Ⅲ. Methodology and Data
　Ⅳ. Conclusion
　APPENDIX
　REFERENCES

Trump Tariffs and Roundabout Trade / Tadashi Ito
　Ⅰ. Introduction
　Ⅱ. Data and methodologies
　Ⅲ. Descriptive analyses
　Ⅳ. Estimation analyses
　Ⅴ. Extended period
　Ⅵ. Another estimation model as a robustness check
　Ⅶ. Estimation for dubious product categories
　Ⅷ. Conclusion
　APPENDIX
　REFERENCES

Experts to the US and Imports from China during the US-China Tariff War: Evidence from Regional Trade Data in Vietnam / Kazunobu Hayakawa
　Ⅰ. Introduction
　Ⅱ. Empirical Framework
　Ⅲ. Empirical Results
　Ⅳ. Concluding Remarks
　APPENDIX. OTHER TABLES
　REFERENCES

Economic Effects of Unemployment Insurance for Entrepreneurs in South Korea / Jiyeon Kim
　Ⅰ. Introduction
　Ⅱ. Model
　Ⅲ. The Impact of UI for Entrepreneurs on the Economy
　Ⅳ. Exploring alternative designs of UI for entrepreneurs
　Ⅴ. Comparison with other social protection policies
　Ⅵ. Concluding Remarks
　APPENDIX
　REFERENCES