Peer-reviewed articles

• 2025, "Quality trade and transportation costs."

Economics Letters, 257: 112705. (with Toshihiro Okubo)

• 2025, "Margins, concentration, and the performance of firms in international trade: evidence from Japanese customs data."

Journal of the Japanese and International Economies, 75: 101340. (with Keiko Ito, Masahiro Endoh, Naoto Jinji, Toshiyuki Matsuura, and Toshihiro Okubo) Working paper version

• 2024, "Costs of sovereign debt crises: restructuring strategies and bank intermediation." 

Journal of International Economics, 152: 104002. (with Tamon Asonuma, Marcos Chamon, and Aitor Erce) Working paper version

• 2022, "Importing inputs for climate change mitigation: the case of agricultural productivity." 

Review of International Economics, 30(1): 34-56. (with Rodrigo Garcia-Verdu, Alexis Meyer-Cirkel, and Hans Weisfeld) Working paper version

• 2020, "Gains from trade and the sovereign bond market." 

European Economic Review, 124: 103413. (with Ayumu Ken Kikkawa) Working paper version

• 2019, "Explaining the employment effect of exports: value-added content matters." 

Journal of the Japanese and International Economies, 52: 1-21. (solo-authored) Working paper version

• 2018, "The 'China shock', exports, and U.S. employment: a global input-output analysis." 

Review of International Economics, 26(5): 1053-1083. (with Robert C. Feenstra) Working paper version

• 2013, "A theory of gains from imported inputs." 

The International Economy (The Journal of the Japan Society of International Economics), 16: 37-57.

Book chapters and other completed work

• 2026, "The “Flexible Declaration Scheme” of Japan customs: prevalence, determinants, and consequences." 

Public Policy Review (The Journal of the Policy Research Institute of Japan's Ministry of Finance), forthcoming. (with Shintaro Negishi, Takanori Otsuka, and Fumiharu Ito) 

• 2025, "Firm-level employment adjustments to import competition."

Mita Journal of Economics (The Journal of the Keio Economic Society), 118(2): 173-189. Working paper version 

• 2022, "Sovereign debt restructurings: survey on concepts, trends, empirics, and theory."

Public Policy Review (The Journal of the Policy Research Institute of Japan's Ministry of Finance), 18(1): 1–16. (with Tamon Asonuma and Hyungseok Joo)

• 2019, "The 'China shock' in trade: consequences for ASEAN and East Asia." 

World Trade Evolutions: Growth, Productivity and Employment, edited by Lili Yan Ing and Miaojie Yu, Routledge. (with Robert C. Feenstra) 

• 2018, "Sovereign debt restructurings: an overview of the empirical literature." 

The Journal of Investing, 27(3): 56-64. (with Tamon Asonuma and Aitor Erce) 

Akira Sasahara, Faculty of Econonics, Keio University