Resumen
In democratic societies, the public sector is an agent created by individualsto collectively provide goods and services that the market is unable toprovide an efficient andequitable. However, the economic crisis that emergedin the Western powers since the late 90s, sharpened criticism of public economyby excessive regulatory proposals related to the model of free competition.However, such arguments tend to neglect the scope of positive approachtowards the excesses of political and administrative applications. The intentof this text is then review the progress of the public sector economy facing theproblem of social intervention, distinguishing positive bets normative judgments.