Working Papers (Empirical):
When do firms sell high durability products? The case of Light Bulb Industry, 2025, arXiv:2503.23792. [slide]
Investment Dynamics and Merger Policy: Long-run Effects of Horizontal Merger in Oligopolistic Market (with Hiroshi Ohashi), SSRN5851322,2025. [slide]
Inefficient operations of thermal generation units, 2025.
Working Papers (Methodological):
Sequential algorithm for structural estimations with equilibrium constraints, 2025. [slide (DSE conference)]
(Builds on my prior study "Sequential algorithm for estimating structural models without using analytical derivatives.")
Fast and simple inner-loop algorithms of static / dynamic BLP estimations, arXiv:2404.04494, 2024. [code]
Computationally Efficient Methods for Solving Discrete-time Dynamic models with Continuous Actions, arXiv:2407.04227, 2025. [code]
Working Papers (Theoretical):
Dynamic markups of durable goods firms, 2025.
Firm's static behavior under dynamic demand, RIEB Discussion Paper Series No.2022-19, 2022. (Awarded runner-up of 25th Moriguchi Prize, Osaka University.) [slide]
Publication:
The Use of Symmetry for Models with Variable-size Variables, Mathematical Social Sciences, 102437, 2025. [slide (pp.62-70.)]
Jacobian-free Efficient Pseudo-Likelihood (EPL) Algorithm, Economics Letters, 112195, 2025. [code]
The biases in applying static demand models under dynamic demand, Review of Industrial Organization, 2024. [Online Appendix] [slide]
Intergovernmental competition for donations: The case of the Furusato Nozei program in Japan (with E. Fukasawa, H. Ogawa), Journal of Asian Economics, 2020