The article considers the value of money and their importance in the modern world. It analyzes the current purchasing power of money in the whole world, as well as the example of Russia. Particular attention is paid to the establishment of the monetary unit is equivalent to the modern market relations. Economy allocates a lot of the functions of money, but still remains the main purchasing. It gives the ability to define the essence of the value of certain goods and services provided by the markets. Effect of cash flow, which operate in the world, are numerous, so the consideration of traffic flows of money as equivalent is the economic regulator of the processes around the world. Touched upon the formation, the new world currency, which means that the formation and development of the states. Currency allows countries with a dominant position in the issue of money to hold leading positions in their economic development. That in turn leads to the full development of society. The emergence of new dominant currency in the world will enable the development of new countries. Promotion and development of a new currency, which would become the clear leader in the calculations in the world, is one of the objects of the modern review of the monetary equivalents. The purchasing power of money, at this stage of development of social relations dictated by the exchange rate. Thus, the purpose of the article is consideration of the purchasing power of money, its influencing factors and its formation in the new stage of development of society, that in turn will contribute to the development of economic relations between the two countries, and subsequently suffer stabilization of the level of development.