Suprinovič, Olga; Kranzusch, Peter - Institut für Mittelstandsforschung (IfM) Bonn - 2014
Based on income tax data, statistical information can be compiled on self-employed and business start-ups by field of …, approx. one million are old age pensioners (with additional income from self-employment) and two million part-time self …-employed (i.e. with secondary income). 1.6 million self-employed operate in the liberal pro-fessions, thereof 57 % as main …
