مطالعات اقتصادی مرتبط با حاملهای انرژی (فسیلی، تجدیدپذیر و برق)
Sima Arabani; masomeh Latifi Benmaran
Abstract
During the last decade, the international price of crude oil has experienced frequent periods of volatility; which has motivated researchers to investigate how oil price uncertainty affects economic activities and financial markets. Reasonably, oil, as a direct or indirect input factor, can strongly ...
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During the last decade, the international price of crude oil has experienced frequent periods of volatility; which has motivated researchers to investigate how oil price uncertainty affects economic activities and financial markets. Reasonably, oil, as a direct or indirect input factor, can strongly affect the cost of production and profitability expectations of companies. Accordingly, oil price changes can change the company's decision-making and performance. In this regard, we have investigated in the present research the impact of crude oil price volatility on the leverage criteria of companies admitted to the Tehran Stock Exchange. For this purpose, we have used the data of 160 selected companies during the period of 2011 to 2019. We used the panel data method in order to analyze the collected data. The findings of the research showed that crude oil price volatility had negative and significant effects on the leverage criteria of listed companies. Therefore, we concluded that companies reduce their demand for financing to overcome the uncertainty of oil prices. Consequently, an increase in uncertainty in oil prices can motivate companies to reduce their demand for external financing and thus reduce their leverage.
• مطالعات اقتصادی مرتبط با حاملهای انرژی (فسیلی، تجدیدپذیر و برق)
parisa Mohajeri; reza Taleblou; Fatemeh KhanAhmadi
Abstract
Firm investment is one of the important financial decisions in the economy, which affects the value of companies and the wealth of shareholders, which can result in increasing welfare. Despite neglecting the effects of uncertainty in traditional investment theories, modern theories have introduced various ...
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Firm investment is one of the important financial decisions in the economy, which affects the value of companies and the wealth of shareholders, which can result in increasing welfare. Despite neglecting the effects of uncertainty in traditional investment theories, modern theories have introduced various mechanisms for the impact of uncertainty on investment expenditures. Using the daily data of oil prices and the data of 131 companies listed on the Tehran Stock Exchange market during the period of 2008-2020, the factors affecting the investment of the companies are identified by emphasizing the oil price uncertainty. For this purpose, in the first step, the stochastic volatility model in the framework of the space-state approach is the basis for estimating the oil price uncertainty, and in the next, according to the results of the Hausman endogeneity test, the instrumental variable method is used to estimate the coefficients of the variables affecting investment. The findings indicate that first, the volatility of oil prices has no significant effect on investment. Second, firm size, profitability, inflation, and Tobin’s Q affect investment positively and significantly. Third, the financial leverage, which is reflected in the capital structure polices, has a significant negative effect on investment, meaning that more focus on debt financing leads to less corporate investment expenditures.
