The problem of calculating the amount of money needed for goods circulation
Until the first half of the 19th century the money mainly served the circulation of traditional goods and services. This was a real economy, where GDP was produced. Later on a broad area, not directly associated with commodity production, began to develop and form. We call it a virtual economy, it is connected only with the movement of money and securities. The money here has a specific function - a means of speculation. The methodology of calculating the velocity and the amount of money is different for the real and virtual economy. The article describes the methodological approach to understanding the velocity of money in the real economy.