Kazuyoshi Ohki. "Disruptive Innovation by Heterogeneous Incumbents and Economic Growth: When do incumbents switch to new technology?. MPRA Paper. 2019
Kazuyoshi Ohki. International intellectual property rights protection and economic growth with costly transfer. REVIEW OF INTERNATIONAL ECONOMICS. 2017. 25. 5. 1130-1154
大木一慶. Welfare analysis and policy implications in Melitz-type model where markup differs across industries. ISER Discussion Paper. 2016