52 IZA Discussion Papers
IZA Discussion Paper No. 667
published in: M. Herfurth, M. Kohli and K. F. Zimmermann (eds.), Arbeit in einer alternden Gesellschaft (Labor in an Aging Society), Leverkusen: Leske+Budrich, 2003, 131-177
IZA Discussion Paper No. 559
published in: M. Bordo, A. Taylor, J. Williamson (eds), Globalization in Historical Perspective, NBER Conference Report, 2003, 65-119
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