درخت حوزه‌های تخصصی

This research aims to identify the effective factors on sustainable supply chain in the National Iranian South Oil Company (NISOC). The method of data collection was mixed methods. In the qualitative section, data were collected through reviewing 32 previous studies as well as in-depth interviews with 10 faculty members and experts in the field of sustainable supply chain of crude oil and oil products of the NISOC using a Non-Probability Judgmental Sampling. The main dimensions were identified from interviews, and the dimensions were grouped in 13 main categories and 78 sub-categories. 13 main components included organizational factors, production products, sustainable supply chain, industry supply chain, macro policies, technology, customer, economic factors, deficits of supply chain, social factors, political factors, organizational performance, and organizational productivity. Second, through reviewing literature and previous studies, 72 open codes in 9 categories were identified, including strategies, blockchain technology, improving the economic environment, improving the social and environmental policies and laws, internal organizational solutions, external organizational solutions, environmental management, market and capital factors. In the quantitative part, the researcher-made questionnaire was applied in a preliminary study on 10 experts in the field of management, and its relative content validity is examined. Then the final and modified version was provided to 384 employees of the NISOC. SmartPLS software were used for quantitative evaluation of the model. The presented model helps industry managers and decision makers to significantly improve the performance of the supply chain by re-designing the supply chain and taking appropriate measures.

The value of a company is important to shareholders, investors, managers, creditors, and other stakeholders in their assessment of the company's future, its impact on the estimation of investment risk and returns, and stock prices. Therefore, examining the factors affecting a company's value is crucial. Intellectual capital, as a determinant in creating competitive advantage and value, plays a special role and is considered as an intangible asset of companies. Theoretical background and empirical evidence suggest that intellectual capital has a direct impact on a company's value and performance. Moreover, the need for corporate governance arises from the potential conflict of interest between individuals within the company's structure, which can affect its value. As banks’ shares play an important role in the Tehran Stock Exchange, we examine the impact of intellectual capital and good corporate governance on bank value, with the mediating effect of financial performance. The statistical population of this study includes 17 banks listed on the Tehran Stock Exchange over the period from 2017 to 2021. The results indicated that intellectual capital has a significant effect, while corporate governance does not have a significant effect on bank value. Additionally, the mediating effect of financial performance on the relationship between intellectual capital and bank value is accepted based on the Baron and Kenny method for mediation. The findings also show that the mediating effect of financial performance on the relationship between good corporate governance and bank value is confirmed according to the Zhao et al. procedure. Moreover, the results indicated that adding another independent variable relatively increases the explanatory power of the model.

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.