This innovative book demonstrates that it is possible to construct a coherent alternative to neoclassical economics based on the contributions of post Keynesian and Kaleckian economists. It identifies elements from the non-orthodox traditions, in particular from the neo-Ricardian school, that can be welded into a convincing alternative theoretical framework. The building blocks of this synthesis are the non-neo-classical microeconomic foundations of the theory of choice and of the firm. By emphasizing the consequences of a world characterized by true uncertainty and oligopolistic dominance, Marc Lavoie extends short-period paradoxes to the analysis of the long period, and bases these macroeconomic results on microeconomic foundations.