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Nils Wollesen Osterberg

Economic Policy Associate
Korea Economic Institute of America
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About Nils Wollesen Osterberg

Nils Wollesen Osterberg is an Economic Policy Associate at the Korea Economic Institute of America. He received a B.S. in Applied Economics from Cornell University and M.I.A. from Columbia University with a focus on international finance and economic policy and his areas of research are U.S. economic policy toward Korea, international trade and finance, and macroeconomic and geoeconomic analyses.

Before joining KEI, Nils worked at Ipsos Public Affairs and the Swedish Ministry for Foreign Affairs, applying his econometric skills to a wide range of research areas such as public opinion, data modeling, policy evaluation, and international trade policy. His other areas of experience include working on campaigns as an economic policy advisor and providing policy research to inform policymakers at the OECD and the EU to support the transatlantic trade and investment as well as the global value chains initiative.

This report evaluates the rationale and implications of President Donald Trump’s “Liberation Day” tariffs on South Korean imports. The administration frames these tariffs as “reciprocal” measures necessary to correct perceived…

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The key takeaways from this study are as follows: 1. Impact of Perception on Foreign Investment Attitudes: The study finds that individual perceptions of FDI at the state level play…

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The recently signed U.S.–Japan investment memorandum of understanding (MOU) establishes a new framework for how Washington structures trade and investment relations with its allies. Announced alongside the implementation of the U.S.–Japan trade deal, the MOU allocates USD 550 billion for Japanese investments in the United States and lays down procedures for how those funds will…

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Region: Indo-Pacific

October 21, 2025

On July 7, President Donald Trump effectively delayed the 25-percent reciprocal tariffs against South Korea to August 1. The extension grants more time to reach an agreement but does not alleviate the need for a trade deal to achieve certainty and lower tariffs. Section 232 tariffs have remained in force during the pause of reciprocal…

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Region: Indo-Pacific

July 10, 2025

Read the full report by Nils Wollesen Osterberg and Dr. Je Heon (James) Kim by clicking here. The latest report from the Korea Economic Institute of America (KEI) evaluates the rationale and implications of President Donald Trump’s “Liberation Day” tariffs on South Korean imports. The administration frames these tariffs as “reciprocal” measures necessary to correct…

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The first blog post of this series for the Korea Economic Institute of America (KEI) assessed the propriety of the White House’s estimate of South Korean tariffs on U.S. goods and its imposition of reciprocal tariffs at 25 percent. There are several ways that the Donald Trump administration could have derived the number, but it…

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