Abstarct: One of the reasons for the difference in the level of development of countries is the difference in the performance of their different institutions. Institutions cause growth by adjusting the incentive structure and supporting productive activities, and in contrast, by deviating from productive production, increasing risk and hidden costs cause economic recession. In this article, while referring to the basics of institutional economics and the interpretation of unconventional economic variables, the dynamic study of a set of quantitative and qualitative factors and tries to express the reciprocal and logical relationship between variables using causal loops. This method is done using vensim software and predicts the desired variables, which is usually a more appropriate method for expressing complex and qualitative issues than other methods. The period under study begins in 1396 and predicts the Iranian economy over the next two decades. After applying the proposed scenarios, the results show that due to sanctions and institutional weakness, inefficient management, dependence of Iran's economy on oil and its revenue, and the government's lack of attention to other productive sectors, including the business environment, cause challenges. Have been in the process of economic prosperity.