The economics can be divided into business administration (BWL) and economics (VWL). The business administration deals with planning, organizational and financial decisions of individual companies and companies, which are discussed in controlling, marketing and sales. The VWL, on the other hand, is not dedicated to the individual company, but to the overall economic context. In doing so, it examines the economic relationships of markets, countries, international communities or the global economy at a higher level. Here, actors such as private households, companies, investors, the state and abroad play important roles.