@unpublished{publication-5589,
	author={Barbie, Martin and Hagedorn, Marcus and Kaul, Ashok},
	institution={University of Zurich},
	issn={1424-0459},
	number={No. 236},
	series={Working paper series / Institute for Empirical Research in Economics},
	title={Fostering Within-Family Human Capital Investment: An Intragenerational Insurance Perspective of Social Security},
	year=2005,
}