Mina Javadinia, Abdolmajid Jalaee, Mehdi Nejati,
Volume 5, Issue 18 (12-2014)
Abstract
Productivity is one of the important factors in exploration, extraction and production of oil and gas. On the other hands, the literature indicates that the process of economic liberalization is an inventible matter and globalization gradually is improving. So it is important that the effect of oil shocks is considered In Iran. Based on International trade statistics, Shanghai’s countries is one of the most important trading partners of Iran. Therefore, this study investigates whether or not the extraction, exploration and production of oil and gas in Iran is affected by productivity shocks in industry sector of Shanghai’s countries. The Computing general equilibrium approach is used for investigating the effect of productivity shocks on four sectors in Iran (including industry, agriculture, services and oil sectors). Social Accounting Matrix Adjusted 2004 is considered for three scenarios including 3, 5 and 7 percent of productivity shocks (based on world economy trend). The results indicate that the increase in productivity in three industry sector scenarios of Shanghai’s countries declines the oil and gas extraction in these countries, representing efficient use of existing resources and superior technology in other industries as well as focus on oil and gas imports from other countries. So, productivity scenarios indicate that increase in the industrial sector productivity of Shanghai’s countries causes increase in oil and gas extraction in Iran. In addition to showing the relationship between economic of Iran and economic situation of Shanghai’s countries, this issue explains the process of economic globalization.
Maryam Hajipour Apourvari, Mehdi Nejati, Mojtaba Bahmani, Sayyed Abdolmajid Jalaee,
Volume 14, Issue 51 (5-2023)
Abstract
The increase in greenhouse gas emissions is one of the crises in today's world. Because it doubles global warming and environmental pollution. The increase in greenhouse gas emissions has encouraged many countries to substitute renewable energy instead of fossil fuel. The effective use of green energy such as renewable energy and nuclear energy is highly dependent on the technology used in the production of this type of energy. For this reason, the aim of this study is to investigate the impact of importing information and communication technology goods on renewable energy production in Iran. In this research, has been used the Computable general equilibrium model based on the social accounting matrix of 2014. The results show that in all scenarios, the production of fossil electricity in both peak and base times, as well as the production of ICT goods, will decrease because with the release of the import of these goods, foreign ICT goods will replace domestic ones and the production of these goods will be domestic. Also, the production of other sectors has increased and the largest increase is related to the gas sector. By applying the first scenario (10 to 100% change in tariff, without change in the productivity of production factors related to the production of renewable energies), with the further reduction of the tariff, the production of renewable electricity will also decrease in both peak and base times, but when The fact that the import of ICT goods is accompanied by a 3, 5 and 7 percent increase in the productivity of the production factors related to the production of renewable energies (scenarios two to four) will increase the production of renewable electricity in the base load. The production of renewable electricity at peak load has decreased in all scenarios and the results do not change with the increase in efficiency. By reducing the tariff on the import of ICT goods, the amount of CO2 emissions will decrease. Also, as the productivity of the production factors related to the sector of renewable energy production increases, CO2 decreases to a greater extent. It should be noted that with the reduction of the tariff on the import of ICT goods, the price of the goods has decreased in the investigated sectors. As a result, reduce the pollution caused by the consumption of fossil fuels and use them optimally.