In this text you will have an insight on traditional (exogenous) and contemporary (endogenous) theories of economic development. In the frame of traditional theories, there are theoretical routes which are distinguished and are concerning theory of fased growth, theory of structural changes, theory of dependance and theory of neoclassical counter-revolution. Although in their basics, they remain deeply into neoclassical tradition, endogenous theories represent abrevation from the free market hipothesis and government policy withuot intervention.