مطالعات اقتصادی مرتبط با حاملهای انرژی (فسیلی، تجدیدپذیر و برق)
Sheller Ayazi; Sedigheh Atrkar Roshan; Ismail Safarzadeh
Abstract
In recent decades, due to environmental pollution and the depletion of fossil fuel resources, the consumption of renewable energy sources has been increasing relative to non-renewable ones in many countries. The objective of this paper is to vigorously examine the impact of fossil and renewable energy ...
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In recent decades, due to environmental pollution and the depletion of fossil fuel resources, the consumption of renewable energy sources has been increasing relative to non-renewable ones in many countries. The objective of this paper is to vigorously examine the impact of fossil and renewable energy consumption on economic growth and carbon dioxide (CO2) emissions, with a specific focus on oil-producing and non-oil-producing nations. In this research, 20 developing countries, including 10 oil-exporting nations and 10 non-oil-producing ones, were examined from 2000 to 2019 using panel data analysis, dynamic ordinary least squares, and Granger causality tests. The estimation results show that a 1 percent increase in renewable and non-renewable energy consumption, leads to an increase of 0.32 and 0.007 percent of GDP in oil-producing and 0.169 and 0.188 percent in non-oil-producing countries respectively. On the other hand, increased consumption of fossil fuels in oil-producing countries corresponds to an increase in carbon dioxide emissions, while the utilization of renewable energy sources in these countries leads to a decrease in CO2 emissions. Conversely, in non-oil-producing countries, an increase in the consumption of non-renewable energy sources is associated with elevated carbon dioxide emissions, while the incorporation of renewable energy sources leads to a reduction in CO2 emissions. The research results emphasize that endeavors to stimulate economic growth are accompanied by heightened carbon emissions and environmental degradation. Additionally, the findings highlight the significant role of renewable energy sources in controlling carbon dioxide emissions in both oil-rich and non-oil countries.Based on the results, a one percent increase in renewable and non-renewable energy consumption in both groups of countries leads to an increase in GDP. As an increase in fossil energy consumption in oil-producing countries rises the emission of carbon dioxide, and the use of renewable energy in this group of countries reduces the emission of carbon dioxide. In non-oil countries, the increase in the consumption of non-renewable energy rises the emission of carbon dioxide. Also, the consumption of renewable energy in this group of countries reduces the emission of carbon dioxide. The results of the present study show that in the studied countries, efforts to strengthen economic growth lead to increased carbon emissions and environmental degradation. The findings also indicate the positive effect of non-renewable energy sources on carbon dioxide emissions in both groups of oil-rich and non-oil countries and the positive effect of renewable sources on controlling carbon dioxide emissions.
• مطالعات اقتصادی مرتبط با حاملهای انرژی (فسیلی، تجدیدپذیر و برق)
Esmaeel Safarzadeh; Ensieh Shad Ostanjin
Abstract
Increasing global warming is the result of the gradual accumulation of greenhouse gases in the living environment. Energy production systems in general and electricity production in particular is one of the effective factors in the production of greenhouse gases. Therefore, on the one hand, environmental ...
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Increasing global warming is the result of the gradual accumulation of greenhouse gases in the living environment. Energy production systems in general and electricity production in particular is one of the effective factors in the production of greenhouse gases. Therefore, on the one hand, environmental considerations and on the other hand, the limitation of fossil resources have made it necessary to change the energy production system and replace fossil fuels. In this regard, the use of renewable energy resources such as hydropower can be a good alternative to fossil fuels. This article has studied the effect of hydropower consumption on Iran's environment. Hence article has estimated the short-run and long-run relationship between hydropower consumption and different measures of environmental degradation including ecological footprint, carbon footprint, and CO2 emission in the Iranian economy during 1980-2018. For this purpose, the Autoregressive distributed lag (ARDL) approach has been used. The estimation of the specified models indicates the existence of a long-run relationship between the variables included in these models and shows that in the short and long run, there is a significant negative relationship between hydropower consumption and carbon dioxide emissions, and carbon footprints. In other words, the use of hydropower in the short and long run reduces the carbon footprint and emissions of carbon dioxide. Hydropower also affects the ecological footprint in the short run.
مطالعات اقتصادی مرتبط با حاملهای انرژی (فسیلی، تجدیدپذیر و برق)
hosein amirrahimi; Seyyed Shamseddin Hosseini; Seyyed Mohammad Reza Seyyed Noorani; Teymour Mohammadi; Esmaeil Safarzadeh
Abstract
In recent years, privatization in the downstream industries of oil and gas , has been one of the most important measures taken to change and improve the business environment and remove barriers of production, as well as to implement of the general policies of Article 44 of the Constitution. This study ...
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In recent years, privatization in the downstream industries of oil and gas , has been one of the most important measures taken to change and improve the business environment and remove barriers of production, as well as to implement of the general policies of Article 44 of the Constitution. This study intends to check out eleven variables related to the performance of six companies: Isfahan Oil Refinery, Bandar Abbas Oil Refinery, Tehran Oil Refinery, Lavan Oil Refinery, Shiraz Oil Refinery and Tabriz Oil Refinery by DID (fuzzy) method and compare it with control groups in order to Assess the privatization status of these companies. The results of this study show that two variables out of the eleven variables -, the ratio of general administrative and sales costs to revenues and the number of staff before and after the transfer, were significant for the control group. In other words, the employment situation and general administrative and sales costs in the companies under review were more unsatisfactory than the control group and in this regard, they had poor performance. This shows that in practice, the transfer of these companies has not affected the employment situation, positively.
