The formation of the ver.di trade union for the services' sector planned for this week gives rise to the question as to extent of the compliance with collective agreements in the services sector. In any case, it is far below the macroeconomic average in the business-related services sector. For instance, only about one third of the revenue in this sector is generated by businesses complying with collective agreements. This is the result of a representative survey among 1,100 business-related service providers carried out by the Centre for European Economic Research (ZEW) in Mannheim, in collaboration with the "Verband der Vereine Creditreform" in Neuss. The economic sector of business-related services encompasses tax advisors and certified public accountants, business consultants, architects, technical consultants and planners, vehicle renting, machine renting, cargo handling and logistic firms, software providers, advertising agencies and waste management firms.