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In this study, we survey the effect of increase in energy carrier prices on Iran’s economic sectors using input - output (I-O) table of energy in 2006. This investigation is done in two stages including direct and indirect effects and two scenarios. These scenarios consist of a) the price of energy carriers adopted in 2010, and b) prices based on forecasts of the International Institute of Energy. Calculations of the first scenario and the first stage (direct effects) indicated that the brick and cement industries and transportation, warehousing and telecommunications services have been affected by 138, 86 and 65 percent in price increases, respectively. Also, the highest growth in product prices in the second scenario obtained in brick, cement and ceramic and tile industries by 473.68, 347.74 and 199.81 percent respectively. Furthermore, with defining maximum prices of energy carriers in the second scenario, the highest increase in marginal cost according to direct and indirect effects devoted to the brick, cement and ceramic and tile industries equivalent to772.54, 599.9 and 431.52 percent respectively. These industries ranked in the first to third places due to increase in product prices.

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Measuring the welfare effects of energy subsidy reform is one of the most essential steps in determining the conditions and scenarios of energy price reform. Therefore, the main goal of this article is to survey how energy price reform affects the welfare of rural and urban households’ income deciles. This research uses the standard computable general equilibrium model based on legislated scenarios approved by Parliament in 2010. In addition, the supportive and income redistribution policies resulting from energy price reform are simulated and analyzed. The results show that rising energy prices leads to reduction in welfare of all urban and rural households especially in the lower income deciles. In addition, increasing energy prices causes more drop in the welfare of rural households in comparison with urban ones. Therefore, the supportive and income redistribution policies resulting from energy price reform under various redistribution scenarios considerably compensate the lost welfare of households.

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As one of the most important products of Iran, pistachio has a significant share in non-oil revenues. Its annual foreign exchange earnings are over 800 million dollars. However, production of this nut in the country’s major production centers is faced with many problems regarding the efficiency and productivity of the inputs. This study was performed by using two-stage cluster sampling method. The results showed that with the increase in energy carriers’ prices, the farmers of the region would tend to use the optimal amounts of inputs in the long term, thus, reducing energy consumption from 46,016.72 to 31,092 MJ ha^-1. Also, the present values of energy productivity, its efficiency, and specific energy of, respectively, 0.03, 0.42, and 35.05 MJ kg^-1 would be optimized to 0.07, 1.10 and 13.47 MJ kg^-1. Besides, it was revealed that the net energy, which was negative under the existing condition (-26,532 MJ), would increase to 3,160 MJ following the increase in the price of energy carriers. Above all, the non-renewable energy consumption would be reduced from 39,743 to 26,457 MJ. Of course, to achieve the mentioned results, government support of farmers in the short term is necessary in order to facilitate and expedite the change in technology.

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The ecosystem is a fundamental pillar of human life, which has been changed due to the progress and development of the world. The emission of air pollutants is a key factor in environmental degradation. Air pollutants impose the so-called "degradation costs" on different sectors, which these costs are not included in official calculations. Consumption of energy carriers is the main cause of air pollutants emissions in Iran. Therefore, this research seeks to examine the degradation costs of air pollutants emitted by the use of energy carriers in Iran. One way to reduce the emissions of air pollutants and their degradation costs is to impose tax on the consumption of energy carriers. This study considers a scenario for raising the price of energy carriers to the level of FOB price of Persian Gulf. For this purpose, the standard computable general equilibrium model of Lofgren et al () is used. The statistical basis of the CGE model is the 2006 social accounting matrix (SAM). The statistical data on energy consumption and emissions of air pollutants are derived from the energy balance sheets over the period 2006-2012. In addition, economic sectors are divided into 25 sections according to the ISIC classification. Degradation cost in the baseline scenario is equivalent of 14.43% of GDP (at constant prices) in 2006, which by applying the scenario for increasing the price of energy carriers, this cost declines by 23% and amounts to 10 percent of GDP. Results also reveal that the road transportation and electricity sectors experience the greatest reductions in degradation cost.

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Sometimes, economic restructuring can cause the significant conservation of energy. However, any restructuring has specific costs, which may eliminate the benefits of reducing energy consumption. This article aims to measure the implicit exports of energy carriers’ subsidies. To this end, the consumption of energy carriers in Iran is briefly investigated. The implicit exports of energy subsidies are calculated using the input-output table in 2011 (prepared by Statistical Center of Iran) over the period 2008-2016. To do this, the net exports of energy content of goods and services are determined by the price gap approach based on the consumption basket at 2004 prices.  The results show that the production costs in the industrial sector has been influenced by welfare effects resulting from targeted subsidies and rising energy carriers’ prices, and a large portion of energy carriers' subsidies has been implicitly exported.  Indeed, energy subsidy as an exporting good has served as a source of income for the rich. Thus, one of the roles of energy subsidy in Iran is to provide foreign exchange, which makes it possible to import all kinds of goods and services to the country.