Kazumasa, Oguro and Shoichiro, Yuyama (2008): A Study on Financial Deficit and Declining Birthrate — From the Viewpoint of “Children as a Social Security Revenue Source” —-. Published in: Financial Review , Vol. No.88, (July 2008)
Kazumasa, Oguro; Junichiro, Takahata and Manabu, Shimasawa (2009): Child Benefit and Fiscal Burden: OLG Model with Endogenous Fertility. Unpublished.