Researcher Information - YOSHIDA Kenzo |

（Last updated : 2025-09-10 16:09:21）

YOSHIDA Kenzo

Department / Course

Aoyama Gakuin University College of Economics Department of Economics

Job Professor

Specialization and related fields
Sociology, Public economics and labor economics, Economic doctrines and economic thought, Economic policy

Business career
1.	2016/04/01 ～ 2018/03/31	Associate Professor Aoyama Gakuin University College of Economics Department of Economics
2.	2018/04/01 ～	Professor Aoyama Gakuin University College of Economics Department of Economics

Book and thesis
1.	Books	Japanese Social Security System, 2nd Edition (Co-authored) 2024/04
2.	Papers	Why Hybrid Pension Plans Have Not Prevailed in the United States (Part 2): The Social Conflicts and 'Financial Incentives' Over Cash Balance Conversions The Aoyama Journal of Economics,pp.211-272 (Sole-authored) 2025/03
3.	Papers	Why Hybrid Pension Plans Have Not Prevailed in the United States (Part 1): Issues with Cash Balance Plans and ERISA THE AOYAMA JOURNAL OF ECONOMICS,pp.99-142 (Sole-authored) 2024/06
4.	Papers	“A Retirement Crisis” and the Restructuring of the Pension System in the United States: Did the Shift to 401 (k) Plans Cause It? Journal of Social Security Research,pp.346-362 (Sole-authored) 2023/12
5.	Papers	The Stability of Social Security in the United States: The Need for a Durable Institutional Design Journal of Social Policy 47 (2),pp.397-415 (Sole-authored) 2018/04

Academic conference presentation
1.	2025/05/15	The Hidden Challenges to Minimum Income Protection in the Japanese Pension System (The 19th Pension Experts Meeting in the Asia-Pacific Region:Minimum Income Protection for the Elderly: International Approaches to a Sustainable Pension System)
2.	2024/03/16	The End of Pension Crisis and the “Last” Reform for Japan? (The Transformation of East Asian Welfare States in the Post Covid19 Era: Challenges, Opportunities and Futures)