ResearchResearch Activities

IOG conducts research across five key themes: China, Europe and the United States, economic security, international security order, and emerging technologies. These activities are summarized through essays written by IOG researchers, offering in-depth analysis and insights on these critical areas.
Security
Iran: A ‘War of Choice’ No Longer Worth the Cost

Only days after the Feb. 28 surprise attacks by the United States and Israel on Iran, insurance premiums for commercial tankers tr

Group Head, International Security Order / Visiting Senior Research Fellow

Kuniharu Kakihara

Security
Why the Strait of Hormuz Is a Warning for Japan

Following U.S.-Israeli strikes on Iran in February, Tehran responded by imposing a de facto blockade of the Strait of Hormuz. The

Visiting Research Fellow

Yuki Goto

Economic Security
Tariff Tracker: A Guide to Tariff Authorities and their Uses

Last updated: August 17, 2026 ・Tariff Tracker Chronological List ・Reciprocal tariff rates by country (latest updates by date)

Visiting Research Fellow

Paul Nadeau

Economic Security
FX Statecraft: Another Explanation for the Yen Intervention

IOG Economic Intelligence Report (Vol. 5 No. 15)

Visiting Research Fellow

Andrew Capistrano

Diplomacy
Why Takaichi Can’t Be the Next Shinzo Abe

As the clearest political heir to former Prime Minister Shinzo Abe, Prime Minister Sanae Takaichi faces a defining question: Can s

Group Head, Europe & Americas

Yuichi Hosoya

Diplomacy
India’s Indo-Pacific Pivot

The most consequential development of July was Prime Minister Narendra Modi's three-nation trip, from 6 to 11 July 2026, covering

Visiting Research Fellow

Manish Sharma

Diplomacy
Merz’s China Policy: Adjustment Under Constraint – From De-Risking Rhetoric to Managed Engagement

By Aya Adachi, Associate fellow in DGAP’s Center for Geopolitics, Geoeconomics, and Technology Kikyo Taguchi, Research Assistant

Research Assistant

Kikyo Taguchi

Security
What Ukraine and Iran Teach Us About Deterrence

Iran has launched large numbers of one-way attack drones costing only thousands of dollars each into the Persian Gulf, complicatin

Senior Research Fellow

Hirohito Ogi

Diplomacy
USMCA Renewal Is a Pothole, Not a Cliff – Right?

IOG Economic Intelligence Report (Vol. 5 No. 14)

Visiting Research Fellow

Paul Nadeau

Diplomacy
Trump’s new world order and what it means for Japan

Just 18 months into his second term, and with the U.S. midterm elections approaching, U.S. President Donald Trump has generated a

Group Head, Europe & Americas

Yuichi Hosoya

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