I work on decision theory.
Email: shoheiyanagita [at] gmail.com
Employment
Assistant professor, Takasaki City University of Economics (with tenure) 2026-current
Research fellow, JSPS (DC1) 2023-2026
Education
Ph.D. Hitotsubashi University, 2026
M.A. Hitotsubashi University, 2023
B.A. Hitotsubashi University, 2021
Publication
Overreacting to a black box, Journal of Mathematical Economics, 2025, Volume 118, 103131
Skeptical and credulous belief updating under black box recommendations, Mathematical Social Sciences, 2026, Volume 140, 102502
Costly Bayesian optimism, Economic Theory, 2026, forthcoming
Working papers
Cautious Dual-Self Expected Utility and Weak Uncertainty Aversion (joint with Kensei Nakamura)
Preferences with multiple forecasts (joint with Kensei Nakamura)
Incentive to Leave Costly Reviews (joint with Shinpei Noguchi)
Partially rational preferences under ambiguity (joint with Kensei Nakamura)
A note on the foundations of Grether’s α-β rule, R&R Journal of Mathematical Economics
Approximate Bayesian Updating with Complex Clues
To be presented at the JEA 2026 Autumn Meeting (poster) 🧸
An axiomatic model of robust Bayesian persuasion (joint with Wataru Kitano) NEW!
Acquiring irrelevant information as a commitment (joint with Wataru Kitano) NEW!
Selected works in progress
Weighting, Selecting, and Bayesian Updating (joint with Eisuke Uchida)
Learning with costly attention (joint with Kemal Ozbek and Norio Takeoka)