Family members employed by their families’ firms earn 4.5% less, on average, than employees of non-family businesses, but their job enjoyment tends to be greater — they are 4.1% more satisfied than other employees with similar wages, according to a study of companies in 14 countries by Joern H. Block of the University of Trier in Germany and three colleagues. Although working in the family business can be a setup for interpersonal conflict, family members derive important emotional benefits from their work, such as an enhanced sense of identity.
Source: Job Satisfaction and Wages of Family Employees