Early Retirement and Employment of the Young in Germany

Axel Börsch-Supan and Reinhold Schnabel, Social Security Programs and Retirement around the World: The Relationship to Youth Employment (University of Chicago Press, 2010), chap. 5, https://www.nber.org/books-and-chapters/social-security-programs-and-retirement-around-world-relationship-youth-employment/early-retirement-and-employment-young-germany.