سید حسین میرجلیلی

In Iran, especially in the aftermath of economic sanctions of the 2010s, and the intensification of the government's budget deficit, since 2012, there was a diminishing investment, followed by a decrease in production which led to stagnation in the economy. The government plays its economic role by implementing fiscal policy. However, when it is associated with uncertainty, the effectiveness of fiscal policy may be undermined. Therefore, we need to measure the uncertainty of fiscal policy in Iran. We measured the uncertainty index of fiscal policy in Iran using a specified fiscal reaction function. In this function, there are two types of shocks. First, fiscal level shock and second, volatility shock which is a proxy for fiscal policy uncertainty. To this end, we employ particle-filter to estimate fiscal policy uncertainty in Iran. In this paper, by measuring the structural budget balance function for Iran, we utilize it as a dependent variable. The results indicate that the trend of balance or total budget deficit has a compliance with the trend of balance or structural budget deficit for Iran suggesting that the nature of government budget in Iran is a structural one, and in the 2010s the sanctions, adversely affected on the government budget. In 2012, the intensification of sanctions led to the increase in the uncertainty of fiscal policy until 2015 that the trend of fiscal policy uncertainty was mildly downward. In 2017, the uncertainty index of Iran's fiscal policy has increased rapidly until it reached its maximum in 2020, in which the economy did not face with such uncertainty for fiscal policy since 1979.

Financing decisions such as capital structure have gained much attention in literature of financial development over the last decade. Capital structure deviations from its optimal level can occur for various reasons. According to the dynamic trade-off theory, continuous adjustment of capital structure to maximize company value is essential. If companies adjust their capital structure quickly towards the target leverage, past financing activities and historical market conditions will only have short-term effects on the current capital structure. Conversely, if companies adjust their capital structure slowly, the opposite is true. We examine the relationship between organizational and performance characteristics and capital structure, as well as the speed of adjustment, in financial and non-financial firms listed on the Tehran Stock Exchange and compare these effects between the two categories of companies. The statistical population consists of companies listed on the Tehran Stock Exchange from 2017 to 2022. The results show that the speed of capital structure adjustment is lower in the financial sector compared to the non-financial sector. Additionally, three performance variables—profitability, growth opportunities, and liquidity—are statistically significant and impact capital structure and its adjustment speed in both financial and non-financial sectors. However, the growth opportunities variable has a different effect direction in the financial sector compared to the non-financial sector, while the age variable does not have a significant effect. Regarding organizational characteristics—complexity, institutional ownership, and size—only organizational complexity in the financial sector is significant at a 95% confidence level, while all organizational characteristics are significant in the non-financial sector

Financial sanctions have many economic consequences for the oil exporting economies. The sanctioned economy adopts economic policies to deal with it. This paper examines the relationship between financial sanctions, oil revenues and monetary and fiscal policies in Iran and explicates how financial sanctions have affected Iran's access to oil revenues. It also examines the role of fiscal and monetary policies in financial stability and resilience in Iran's economy. To this end, we employed a DSGE model with the new Keynesian approach. The results indicate that the interest rate, consumption, imports and inflation have a positive reaction to the oil revenue shock resulting from financial sanctions. However, the production, export, private sector investment and oil sales indicate a negative reaction to the oil revenues’ shock. Regarding the monetary policy shock, the reaction of production and consumption to the shock is positive. However, the reaction of oil sales and interest rate to this shock is negative. In terms of financial policy shock, production, consumption, investment and export indicated a positive reaction to this shock. However, the interest rate, imports and oil sales indicated a negative reaction to the fiscal policy shock. Monetary and fiscal policy shocks increase the effect of financial sanctions for a short period, while monetary policy shock has reduced the effect of financial sanctions for three periods. Therefore, monetary policy has been more effective than fiscal policy in reducing the effect of financial sanctions.