Simulation of the mechanism of money creation by the banking system and its circulation in a dynamic system of credit economy

This study aims to simulate the money creation mechanism by the banking system in the form of a dynamic system of credit economy based on macroeconomic and microeconomic parameters. For this, a computer simulation has been designed and implemented. special attentions are to the role of debt and the factors influencing its creation and its disappearance. A new expression of the money multiplier and the velocity of money are presented. The traditional method of comparing numbers is not used to display the results, but with the aim of deep and easy understanding , the results are shown in 2D,3D plots as a range of colors. According to the results, whatever the agents' income and wealth, the more marginal propensity for consuming leads to increasing their planned expenses and consequently more requests for loans and increasing the money volume. Debt volume in the system decreases with more repayments, because the higher the debt repayment rate, the brokers are required to repay a larger proportion of their overdue debts, and this leads to the disappearance of debts and a reduction in the volume of money. Increasing the repayment rate due to higher payments leads to an increase in the velocity of money.