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The Institute for Economic Studies issues the Keio-IES Discussion Paper Series to promptly disseminate the latest research results by fellows at Keio University and related institutions. English papers in the Keio-IES Discussion Paper Series are registered in RePEc, a worldwide database of discussion papers.

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List of Discussion Papers

2026/3/30
Revisiting Shadow Short-term Interest Rate Models: Evidence from the Ultra-Low Interest Rate Environment in Japan
No: DP2026-007
Author: Hiroyuki Oi, Shigenori SHIRATSUKA, Shunichi Yoneyama
Language: English
2026/3/23
Performance of Core Inflation Indicators: A Re-examination Including Post-COVID-19 Data
No: DP2026-006
Author: Shigenori SHIRATSUKA
Language: Japanese
2026/3/17
The Survey-Based Output Gap and Input Gap
No: DP2026-004
Author: Koichiro Kamada
Language: English
2026/2/20
Does International Trade Raise Income? Early Studies, Critiques, and Innovations
No: DP2026-003
Author: Akira Sasahara
Language: English
2026/2/20
The Three Puzzles in the Gravity Model of International Trade
No: DP2026-002
Author: Akira Sasahara
Language: English
2026/2/4
Testing for Asymmetric Information in the Public Health Insurance Market in Vietnam: Towards the Accomplishment of Universal Health Insurance Coverage
No: DP2026-001
Author: Hiroyuki Yamada, Anh Tuyet Nguyen, Yasuharu Shimamura, Midori Matsushima
Language: English
2025/12/8
Cash Transfers and Socioeconomic Behavior among Older Adults: Evidence from a Regression Discontinuity Design
No: DP2025-027
Author: Anh Tuyet Nguyen, Hiroyuki Yamada
Language: English
2025/11/10
Perceived risk of landmines and the welfare of Cambodian agricultural households
No: DP2025-026
Author: Tien Manh Vu, Hiroyuki Yamada
Language: English