1. Contributions to Edited Volumes and Conference Proceedings // 2010

    Factor Selection in Observational Studies -- An Application of Nonlinear Factor Selection to Propensity Scores

    Observational studies have become a major research methodology in scienti c disciplines where experiments are hard to perform. These most notably include the health sciences, social sciences and…

  2. Refereed Journal // 2010

    Unemployment persistence: Is there evidence for stigma effects?

    We present evidence for a highly significant interaction between state dependence in individual unemployment risk and the business cycle. The disadvantage from having been unemployed in the previous period is…

  3. Contributions to Edited Volumes and Conference Proceedings // 2010

    Entwicklung und Ungleichheit von Fähigkeiten: Anmerkungen aus ökonomischer Sicht

    Ausdauer und Leistungsintensität im Handlungsablauf, Motivation, sprachliche, logische und motorische Fähigkeiten, Gedächtnisleistungen ebenso wie die Fähigkeit zur Verarbei-tung von Informationen sind im Schul-…