Andersson, Pernilla (contributor); … - 2004 - [Elektronische Ressource]
"When studying income differences and income distribution, the self-employed are often excluded from the population … extent as incomes from being an employee. On the other hand it is a problem to exclude the self-employed when studying income … average income from self-employment compared to the average wage income. This is the case when we study incomes for immigrants …
