In the spotlight are the macroeconomic theories, finally, the role that the state has in the economic context, of these theories derivează addressed economic policy requirements. Governments try to change the size of which are significant because considerării ex-post. Thus, changes in taxes, interest or demand state-defined political goals, is pursuing other goals such as price level stability, full employment of labor and economic growth. Macroeconomic dimensions plays an important role in the political process of legitimation, as they can be interpreted by voters as an indication of the government quality work.