The authors present some comments on the article "Groups and Their Interests" by A. Rubinstein (Voprosy Economiki. 2006. No 11). The article is highly estimated by the authors. Meanwhile, they believe the problem put forward cannot be solved without a new approach to macroeconomics as a multi-leveled system with the leading role of financial capital. In order to discuss macroeconomic issues in the context of the complex systems theory the authors develop a synergetic paradigm.