This study was prepared by Andreas Kuhlmann, while he was working with the Ifo Institute for Economic Research. It was completed in September 2006 and was accepted as a Ph.D. thesis by the Economics Department of the University of Munich. The subject of this study is the analysis of network...

Child care and education are important inputs in the human capital production function. The research of Nobel prize winner James Heckman shows that skills are built from the early childhood on and increase the returns of later educational inputs, in short: skill begets skill. Therefore, it is...

This volume was prepared by Jens Ruhose while he was working at the Ifo Institute. It was completed in December 2014 and accepted as a doctoral thesis by the Department of Economics at the University of Munich. It includes four self-contained chapters that contribute to the understanding of the...