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حرية الوصول المقاله
1 - برآورد سیستم تقاضای بنزین، برق و گاز خانگی برای خانوارهای شهری ایران
علی اکبر خسروی نژادیکی از موضوعات بسیار مهم در حوزه اقتصاد بخش عمومی، تدوین سیاستهای جبرانی و قیمت گذاری حاملهای انرژی میباشد. هدف این مطالعه برآورد کشش های درآمدی، قیمتی و متقاطع حاملهای انرژی خانوارهای شهری ایران میباشد. لذا، سیستم تقاضای حاملهای انرژی شامل بنزین، برق خانگی و گاز أکثریکی از موضوعات بسیار مهم در حوزه اقتصاد بخش عمومی، تدوین سیاستهای جبرانی و قیمت گذاری حاملهای انرژی میباشد. هدف این مطالعه برآورد کشش های درآمدی، قیمتی و متقاطع حاملهای انرژی خانوارهای شهری ایران میباشد. لذا، سیستم تقاضای حاملهای انرژی شامل بنزین، برق خانگی و گاز خانگی برای خانوارهای شهری توسط دادههای تلفیقی خانوار- سال با 77758 خانوار طی دوره 1395 تا 1398 برآورد شده است. این برآورد در دو حالت تمامی خانوارهای شهری و خانوارهایی که بنزین مصرف کردهاند انجامگرفته است.از ویژگیهای متمایزکننده این مطالعه نسبت به مطالعات پیشین، استفاده از دادههای ماهیانه شاخص قیمت همراه با دادههای مقطعی بودجه خانوار است. نتایج نشان میدهد که کالاهای موردمطالعه یعنی بنزین، برق خانگی و گاز خانگی ضروری میباشند. از سه کالای فوق، کالاهای بنزین و برق خانگی بی کشش بوده و گاز خانگی با کشش برآورد شده است. تفاصيل المقالة -
حرية الوصول المقاله
2 - Impact of Energy Subsidies Elimination on Technology Gap Ratio in Cucumber Production
رضا اسفنجاری کناری زهره کرمی سیده صدیقه احمدزادهThis paper presents an analysis of technical efficiency andtechnology gap ratio (TGR) in greenhouse cucumber inFars Province, Iran. Cucumber production was chosen for thisstudy for the reason that greenhouse productions in this provincemainly have focused on this produc أکثرThis paper presents an analysis of technical efficiency andtechnology gap ratio (TGR) in greenhouse cucumber inFars Province, Iran. Cucumber production was chosen for thisstudy for the reason that greenhouse productions in this provincemainly have focused on this product. The data used in thisstudy was obtained from a random sample of 127 greenhouses in Fars Province for 2010 to 2011. Metafrontier productionfunction model for firms was used within the parametric frameworkof stochastic frontier analysis (SFA). The frontier modelsare applied in the analysis of cross-sectional data by assuminga translog functional form. Results indicate that eliminatingenergy input subsidies has led to significant decrease in greenhousecucumber production efficiency so that the mean technicalefficiency declined from 98% to 67 % during 2010-2011. Furthermore,subsidies elimination has also led to decrease of themean technology gap ratio in greenhouses from 0.92 to 0.87,in other words, it has caused more distance from efficient productionfrontier. تفاصيل المقالة -
حرية الوصول المقاله
3 - The Effect of Raising Electricity Price on Welfare of the Household Sector in Rural Areas of Guilan Province, Iran
حسین صالحی Esfandiar Doshman Ziari Mohammad Sadegh ZiaeiPresent study investigates the effect of soaring residential electricity price on the welfare of rural individuals in Guilan Province by Almost Ideal Demand System (AIDS) in which the elasticity’s and welfare variations were calculated by Compensation Variations ( أکثرPresent study investigates the effect of soaring residential electricity price on the welfare of rural individuals in Guilan Province by Almost Ideal Demand System (AIDS) in which the elasticity’s and welfare variations were calculated by Compensation Variations (CV) and Equivalent Variations (EV) for the time period of 1991-2012. It was shown that the absolute value of income and price elasticity of electricity was less than one unit. Low price elasticity of the demand shows the slight impact of price variations on the demand for electricity in the studied period, on the one hand, and the lack of an appropriate substitute for electricity in residential sector, on the other hand. The calculation of welfare variations and its comparison with the share of electricity in the paid subsidy shows that with 50% and 100% increase in residential electricity price, the cash paid to the households is less that the amount acquired. Accordingly, it can be argued that the direct effect of residential electricity price modification (increase) has not been compensated. In fact, the welfare loss of the households, due to more expensive electricity, is more than the acquired welfare. Yet, in a gradual increase scenario, the calculated CV is less than the payments to the families, and hence it is the only price policy that does not impose a loss on families and improves their welfare. تفاصيل المقالة