In order to provide a certain degree of local autonomy as well as to lessen the financial burden of the central government, a "local budget system" was introduced in 1973. Under this system, provincial authorities are responsible for the operating costs of institutions and enterprises not under direct central government control, such as schools, hospitals, shops, and local consumer goods production. In return, they are expected to organize as many profitable ventures as possible and to turn over profits to the central government.