An analysis by the Institute of SME Research of the University of Mannheim on behalf of the Foundation for Family Businesses shows that family businesses in Germany have grown more strongly in recent years than the corporations listed on the Dax. Not only did their sales increase more, but they also created significantly more jobs in Germany.
You can find further information in this article: https://www.personalwirtschaft.de/news/recruiting/familienunternehmen-schaffen-mehr-arbeitsplaetze-als-dax-konzerne-146590/
More detailed information on current studies: http://www.institut-fuer-mittelstandsforschung.de/kos/WNetz?art=Project.show&id=133