Germany has a social market economy, meaning that she embraces the spirit of free enterprise, but tempered with controls and other administrative legal measures designed to prevent large economic participants from seriously damaging other interests. Laws against unfair competition, including the antitrust provisions, and for the protection of the environment, as well as those protecting employees, all illustrate this latter point. In general, the work force is highly motivated, and highly trained and disciplined. The strong and well- established trade union movement usually keeps to established bargaining procedures and, over the years, has achieved an impressive degree of protection for employees. As a result, cases of serious industrial unrest are rare although there are a few instances of demarcation disputes (conflicts between rival employee representations, rather than between labour and management), especially in the passenger transport sector.