Investigating the Effect of Government Interventions in the Iranian Capital Market: Non-linear Autoregressive Distributed Lag (NARDL) Model

The issue of government intervention in the economy is one of the issues that, despite its high importance for the Iranian economy, little research has been done on it. Among the reasons that justify government intervention in the economy are the production of public goods and services, redistribution of income, stabilization of the economy, natural monopoly and external positive and negative factors. On the other hand, today, capital markets as financial and economic exchanges of companies play an important role in the financial sector and the prosperity of economic activities. An efficient capital market can improve economic growth and attract domestic and foreign capital and play an important role in the process of economic development by stabilizing the financial sector and providing a suitable environment. Some experts believe that the continuous intervention of the government in the process of valuing stock exchange symbols in the capital market has prevented the economic growth and development of the country and is to the detriment of GDP. One of the threats that currently threatens the stock market as a financial market is the involvement of the Ministry of Economy and other government departments in determining the value of stock exchange symbols, and if government officials are not prevented from interfering in the daily stock valuation process, liquidity from the stock market It will move to other parallel markets. On the other hand, we know that stock prices in the capital market are determined entirely on the basis of supply and demand and such things as (environmental or macro factors, industry-related factors and internal factors or within the company. According to the explanations provided, the issue that the present study seeks is what are the effects of government interventions on the capital market during the years 1992-2021?