A Note on Imposing Local Curvature in Generalized Leontief Models

In this paper, we build on Ryan and Wales (1998) and Moschini (1999) and impose curvature conditions locally on the generalized Leontief model, introduced by Diewert (1974). In doing so, we exploit the Hessian matrix of second order derivatives of the reciprocal indirect utility function, unlike Ryan and Wales (1998) and Moschini (1999) who exploit the Slutsky matrix.

A Note on Imposing Local Curvature on Generalized Leontief Models

In this paper, we build on Ryan and Wales (1998) and Moschini (1999) and impose curvature conditions locally on the generalized Leontief model, introduced by Diewert (1974). In doing so, we exploit the Hessian matrix of second order derivatives of the reciprocal indirect utility function, unlike Ryan and Wales (1998) and Moschini (1999) who exploit the Slutsky matrix.Regularity; Slutsky matrix; Negative semidefinite

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در ادبیات مطالعه خنثی بودن و ابرخنثی بودن در ایران دو ضعف اساسی وجود دارد: 1. متدولوژی بکار رفته در آنها منطبق با ادبیات قدیم در حوزه خنثی بودن پول بوده و ویژگیهای سری زمانی متغیرهای موجود در این مدلها مورد بررسی قرار نگرفته است که طبق نظر کینگ و واتسون (1997) نتایج بدست آمده از این مطالعات قابل استناد نیستند. 2. حجم پول بکار رفته در این مطالعات از تجمیع جمع ساده بدست آمده و در آنها از شاخص دیویسیا بهره گرفته نشده است. این در حالی است که بر اساس مطالعات تجربی صورت گرفته، ضعف توان پیشبینی تجمیع جمع ساده آشکار شده است. در این مقاله از متدولوژی کینگ و واتسون برای بررسی خنثی بودن و ابرخنثی بودن پول استفاده شده و هر دو ضعف برشمرده به صورت توأم برطرف شده است. نتایج بدست آمده حاکی از آن است که فرضیه خنثی بودن پول در در ایران در بیشتر حالتهای مختلفی که طبق متدولوژی مورد بررسی قرار گرفتهاند، تأیید میشود

An Assessment of the Impact of Reducing Implicit and Explicit Energy Subsidies in Iran; Using a Computable General Equilibrium Model Based on a Modified Micro Consistent Matrix

This paper identifies two types of implicit and explicit energy subsidies in Iran. Using a computable general equilibrium model, we analyze the impacts of reducing implicit and explicit energy subsidies. The model is based on a Modified Micro Consistent Matrix of MOE (the Ministry of Energy) which includes implicit subsidies. The model consists of 36 commodity groups and 18 economic activities. Our findings suggest that overall economic activity and consumer welfare will be reduced following the reduction of energy subsidies. Energy exports would increase and nonenergy exports decline. Economic activity will decline across all sectors except for upstream energy activities. Domestic energy demand by households and producers would decline as well

Impact Analysis of Energy Price Reform and Cash Subsidy Payment in Iran: A CGE Approach

This paper studies the impacts of domestic energy price increase along with cash subsidy payment to households and also to production sectors. We applied the MOF_CGE (Ministry of Finance_Computable General Equilibrium Model) which considers transport and trade margins and introduces a modified Armington aggregator for foreign transactions. The data is based on the 2001 social accounting matrix which includes energy carriers. We assume two policy scenarios for the price increase and two scenarios for cash subsidy payment. The energy prices increase up to FOB price in one scenario and to the 75% of FOB in another. The government pays 50% of the policy revenue to households in one scenario and 60% in another with 30% to production sectors in both. We found that increasing the household share from 50% to 60% will compensate half of the welfare reduction. The results show that in short-run the welfare and production decline but imports and exports increase. Comparing with those studies with no redistribution consideration, we found that the cash payment policy compensates the welfare and productivity reduction to some extent

Impact Analysis of Energy Price Reform and Cash Subsidy Payment in Iran: A CGE Approach

This paper studies the impacts of domestic energy price increase along with cash subsidy payment to households and also to production sectors. We applied the MOF_CGE (Ministry of Finance_Computable General Equilibrium Model) which considers transport and trade margins and introduces a modified Armington aggregator for foreign transactions. The data is based on the 2001 social accounting matrix which includes energy carriers. We assume two policy scenarios for the price increase and two scenarios for cash subsidy payment. The energy prices increase up to FOB price in one scenario and to the 75% of FOB in another. The government pays 50% of the policy revenue to households in one scenario and 60% in another with 30% to production sectors in both. We found that increasing the household share from 50% to 60% will compensate half of the welfare reduction. The results show that in short-run the welfare and production decline but imports and exports increase. Comparing with those studies with no redistribution consideration, we found that the cash payment policy compensates the welfare and productivity reduction to some extent

Impact Analysis of Energy Price Reform and Cash Subsidy Payment in Iran: A CGE Approach

This paper studies the impacts of domestic energy price increase along with cash subsidy payment to households and also to production sectors. We applied the MOF_CGE (Ministry of Finance_Computable General Equilibrium Model) which considers transport and trade margins and introduces a modified Armington aggregator for foreign transactions. The data is based on the 2001 social accounting matrix which includes energy carriers. We assume two policy scenarios for the price increase and two scenarios for cash subsidy payment. The energy prices increase up to FOB price in one scenario and to the 75% of FOB in another. The government pays 50% of the policy revenue to households in one scenario and 60% in another with 30% to production sectors in both. We found that increasing the household share from 50% to 60% will compensate half of the welfare reduction. The results show that in short-run the welfare and production decline but imports and exports increase. Comparing with those studies with no redistribution consideration, we found that the cash payment policy compensates the welfare and productivity reduction to some extent

An Assessment of the Impact of Reducing Implicit and Explicit Energy Subsidies in Iran; Using a Computable General Equilibrium Model Based on a Modified Micro Consistent Matrix

This paper identifies two types of implicit and explicit energy subsidies in Iran. Using a computable general equilibrium model, we analyze the impacts of reducing implicit and explicit energy subsidies. The model is based on a Modified Micro Consistent Matrix of MOE (the Ministry of Energy) which includes implicit subsidies. The model consists of 36 commodity groups and 18 economic activities. Our findings suggest that overall economic activity and consumer welfare will be reduced following the reduction of energy subsidies. Energy exports would increase and nonenergy exports decline. Economic activity will decline across all sectors except for upstream energy activities. Domestic energy demand by households and producers would decline as well

An Assessment of the Impact of Reducing Implicit and Explicit Energy Subsidies in Iran; Using a Computable General Equilibrium Model Based on a Modified Micro Consistent Matrix

This paper identifies two types of implicit and explicit energy subsidies in Iran. Using a computable general equilibrium model, we analyze the impacts of reducing implicit and explicit energy subsidies. The model is based on a Modified Micro Consistent Matrix of MOE (the Ministry of Energy) which includes implicit subsidies. The model consists of 36 commodity groups and 18 economic activities. Our findings suggest that overall economic activity and consumer welfare will be reduced following the reduction of energy subsidies. Energy exports would increase and nonenergy exports decline. Economic activity will decline across all sectors except for upstream energy activities. Domestic energy demand by households and producers would decline as well