Hirschel, Dierk (2003): Do high incomes reflect individual performance? The determinants of high incomes in Germany. Unpublished.
Merz, Joachim and Hirschel, Dierk (2003): The distribution and re-distribution of income of selfemployed as freelancers and entrepreneurs in Europe. Unpublished.
Hirschel, Dierk and Merz, Joachim (2004): Was erklärt hohe Arbeitseinkommen der Selbständigen? Eine Mikroanalyse mit Daten des Sozio-ökonomischen Panels. Unpublished.
