Abstract:
World economy is living a time of change, and the complexity of change has implied a new research agenda on the role of economic policy in society. The role, types and effects of economic policy have been major issues in economic science since its origins. Jean Tinbergen (1956) [1] established the basis for the traditional theory of economic policy in economics and he tried to show how economic knowledge could be organized to regulate and guide economic systems. Nevertheless, this traditional approach has been improved through several contributions, for example when Eggertsson (1997) [2] incorporated the existence of incomplete knowledge, endogenous politics and institutional change in the theory of economic policy.