EN
A model of the New Neoclassical Synthesis (NSN) became a commonly accepted explanation of the market economic mechanisms during the last 10 years. It became also a cornerstone of economic policy, mainly monetary policy. However, both theoretical and practical aspects of the model may arouse some caveats. Most important doubt considers an underestimation of the power of fiscal policy. Hence the opinions that the global financial crisis might have been caused also by the misguided policy grounded on the inaccurate theoretical principles. The article studies the crux of the NSN model and reviews the problems concerning its practical implications.