Showing 298 results for Type of Study: Applicable
Mahdi Sadeghi, Mahdi Khoshkhooy,
Volume 8, Issue 27 (3-2017)
Abstract
Today one of the basic conditions for economic development in one country, is the high performance of energy sources used in different sections of the country economy. When the efficiency is raised, one of essential requirements is benefit from technologies and equipments with higher technical and performance specifications, and removing economic barriers or improving economic policies, in order to achieve as higher efficiency as possible in energy consumption. Considering that close to half of the our country energy consumption accounted for households and this sector is the largest consumer of energy in the country, and considering the importance of the issue of energy consumption, in this study we decided to analyze and scrutiny the phenomenon of energy efficiency in the household sector, and to achieve accurate and scientific analysis in this area based on expert opinion data, using structural equations modeling technique in LISREL. Based on the result of the model, economic policies (price and none price) has relatively more importance than the technical and technological solutions to the problem of improving energy efficiency in the household sector, as well as important and effective indices of each of these factors are extracted and identified. According to it, "levy a tax on energy consumption" among economic policies, and indicators of "e-government infrastructure development", "development of smart counters and Equipments WARNING energy consumption in homes" and "development of vernacular architecture patterns adapted to climatic conditions in different regions of the country" in connection with Technical foctors, have the greatest impact on energy efficiency in the mentioned sector. However, if the relationship identified for both the economic policies and technical-technological factors with the dependent variable "performance" was not acceptable very good, this matter can indicate this fact that there are other variables and factors that are influencing and can have a great role to play. Among these factors it can be addressed the socio-cultural factors and insights and norms of society which can be a help to aggravate the problem of inefficiency in energy use.
Mr Behnam Najafzadeh, Mr Siab Mamipour,
Volume 8, Issue 27 (3-2017)
Abstract
In this paper to assess the environmental efficiency of electric power companies two-stage approach has been used Which means that the first step is to calculate the environmental efficiency score of electric power companies with Slack-Based Measure during the period (2004-2014). Then, the second step various factors effects have been evaluated on environmental efficiency by using Tobit and Ordinary Least Squares models. The result of first step show that environmental performance of the electricity industry has seen a reduction in performance during the period of 2004 to 2006, While environmental performance had a rising trend between 2007 to 2009 and then it has had a considerable reduction in the period 2010-2014 (after the liberalization of energy prices). Finally, in 2004, the average efficiency of the industry is reached to lowest level (0.65). The result of second step show that factors affecting efficiency namely Size and Liberation dummy variables have negative effects but the proportion of electricity produced by the thermal power plants, the proportion of gas used in the fuel, capacity utilization rate and electricity exports have positive effects. The results show that importing electricity doesn’t have any significance effect on the efficiency. In the end, the results of adding a new variable (variable log of per capita GDP) showed that except for the proportion of gas used in the fuel, the explanatory variables has robust coefficient.
Morteza Behrouzifar, Ali Emami Meibodi, Abdolrassoul Ghassemi, Mohammad Bagher Heshmatzadeh,
Volume 8, Issue 27 (3-2017)
Abstract
Expectation has an important role in oil price fluctuation and it seems which one of the important factors is for changing supply behaviour however oil price changes. Identification of mentioned expectation could help us for partly and continuously control the oil market situation.one of the important factor that could have effects on future oil price expectation is volume of current reserve oil and specifically OPEC members reserves. For OPEC members not only high reserve oil is prestige but also give them chance for having more OPEC production share however after applying market sharing system based on production for OPEC members in early 1980s,volume of reserve oil considered as a main benchmark and after that started increase reserve oil competition among OPEC members. In this paper tried study transition s of Iran’s oil reserves and its effectiveness on the oil producer’s countries’ information and also its accuracy. According to some statement reserve oil extra announcement could create chaos in oil market. Based on this study there is no any relation between increasing of oil reserves and oil production changes in Iran as one of the OPEC member's country and it seems extra reserve oil announcement more than reality is a hidden competition among members for getting more credit.
Ali Katebi, Mohammad Tavakkoli,
Volume 8, Issue 28 (7-2017)
Abstract
According to Quran Karim verses and hadiths, Shia jurisprudence necessitates paying Khoums. Since Khoums belong to surplus of earning, as a result that should be considered in economic calculation of projects. Since this topic has been neglected in common economic evaluation of projects, this paper has addressed effect of considering Khoums in prioritize investment calculations in projects. For this purpose selection of projects considered in two cases: a) with khoums and b) without khoums factored in. The result show prioritization and selection of projects are different in two cases. Results of study show a project had priority without khoums factored in, might place outside prioritize investment with khoums. On the other hand the project is less profitable than other projects might place in priority compared other projects, with considering Khoums in economic calculations.
Ali Asghar Salem, Morteza Niazi,
Volume 8, Issue 28 (7-2017)
Abstract
Religious tourism is very important either in Iran and in the international level. In this study dynamic linear almost ideal demand system and formulas of price and income elasticity were applied to estimate demand for religious trips. To this end, micro data of household budget prepared by Census center of Iran for 1991-2011 has been applied in this study.
According to the results, income elasticity of religious trips is about 0/42 , that means one percent increase in income will lead to an increase of 0/4 percent in demand for religious trips. Also the price elasticity of demand in all commodity groups is negative and price elasticity of religious trips is about -0/98.
Ezatollah Abbasian, Mohammad Jafari, Ebrahim Nasiroleslami, Farzaneh Farzaneh Mohammadi,
Volume 8, Issue 28 (7-2017)
Abstract
In recent years, with increasing of international sanctions and oil revenues falling in Iran, more attention has paid to public spending and taxes as a source of government financing. In this regard, numerous studies have focused on the issue of taxation and its role in economic development. However, the most studies in Iran analyses the role of taxes on macroeconomic variables such as economic growth, inflation and income inequality, and there is no research in the row of the changes in tax income over the business cycle. In this study, using the dynamic least squares method, short and long-run elasticity of tax bases in Iran in response to changes in GDP over the period 1973-2014 is calculated. The results shows that in the long run, the elasticity of income and corporate tax are statistically greater than one and for other tax bases are not significantly different from the unit. In the short run, elasticity of corporate tax is different from unit and other tax bases were not significantly different than unity. According to these results, it is suggested that the Iranian government should have less focusing on income and corporate tax during the recession period
Hamed Abdolmaleki, Hossein Asgharpur, Jafar Hghighat,
Volume 8, Issue 28 (7-2017)
Abstract
Money supply and velocity of money are important variables that affect inflation and product. Velocity of money is a key concept for economic policy, and it's getting more important since it is closely related to behavior of the demand for money. In this regard, Friedman believes that the volatility of money growth is the main factor of velocity of money, which in monetary economics literature is known as Friedman’s monetary volatility hypothesis. The purpose of this study is to explore and explain the fluctuations in the velocity of mony from the perspective of Monetarism. In this regard, using Iran’s economic quarterly data for the period 1988(3)-2015(1) and in the framework of causality test, the Friedman hypothesis based on the impact of volatility of money growth on velocity of money is tested for monetary aggregates (M1 and M2). The model used in this paper is extended VARMA, GARCH-M and the estimated method is quasi maximum likelihood (QML). The results support the Friedman hypothesis for the period under study; in other words, there is a causal relationship from money growth volatility to velocity of money.
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Volume 8, Issue 28 (7-2017)
Abstract
Addressing the economic components of the fiscal regime of the Iran Petroleum Contract (IPC), in this article the fiscal simulation of the contract has been developed. Most important fiscal parameters of the contract are: Capex and Opex, Cost of Money, remuneration fee, amortization period and R-factor. Technical information of the Darquin field (phase 3) has been used as a case study for this paper. The results show some merits and demerits. The most important output of the model is that the contractor's take is so small (about 3% in the discounted manner and the IRR of Contractor can’t exceed some amount (14.6%) by price increasing, showing the service nature of the contract. According to the results, remuneration fee is the most significant factor which can affect the IRR and take of the contractor, so its level should be determined carefully regarding the fiscal simulation model. Another issue which should be paid attention to is the determination of R-factor and remuneration fee slides. The fiscal regime is regressive in the levels of price lower than $50 and is progressive in the higher levels, but the profitability of the contractor in the higher levels is constant in absolute terms which can reduce the attractiveness of the contract. One of the major defects of the contract is the Gold-plating issue which is raised because of using R-Factor mechanism. Using the saving index can mitigate the problem notably.
Hosein Mohammadi, Mehdi Mahmoudi,
Volume 8, Issue 28 (7-2017)
Abstract
Interest rate is one of the most important policy variabels in macroeconomic. Global financial crises and big debt in some countries around the world, make the importance interest rate more explicitly. In the carrent study, the effect of interest rate, inflation, government investment and expenditure on GDP capita per was investigated using panel data approach. Forthermore panel VAR method was used to consider the effects of each mentioned variables on each other and investigating causality relationships between these variabls. 20 Islamic and 19 Non-Islamic countries during 1990-2014 were selected for this study. The results show that in both Islamic and Non-Islamic countries, interest and inflation rate have a significant negative effect on GDP per capita. Government investment in both groups of countries have a significant positive effect on GDP per capita. These results are inline with economic theories. Finally, government expenditures in these groups of countries have different effect on GDP per capita. also lowering interest rate Non-Islamic countries has a considerable effect on other variables.
Hojjat Izadkhasti,
Volume 8, Issue 28 (7-2017)
Abstract
An efficient monetary and tax system plays an important role in the proper performance of the economic system, and can effect on motivation of labor, consumer, savings and investment behavior. A theory of monetary and tax reform is movement of the income tax system and inflation tax to the system of consumption tax, that can increase the tendency to savings, investment and capital accumulation. In this study, with public finance approach and using dynamic general equilibrium model with cash in advance restriction on consumption and investment, analysis the effects of reform inflation tax and consumption tax rates during the equilibrium growth path. Then, with put the amount of parameters in the steady state, sensitivity analysis of the variables to the reform of inflation tax and consumption tax rates will be discussed in the various reform program. The results of calibration and sensitivity analysis in various scenarios indicates that the reduce of inflation tax and increase the consumption tax rate, along with reducing the size of government and reduce liquidity constraints on investment, has increased capital accumulation, production, consumption, real money balances per capita and the welfare in the steady state.
Mrs Nafiseh Behradmehr, Mr Mohsen Mehrara, Mr Mohammad Mazraati, Mr Hadi Dadafarid,
Volume 8, Issue 29 (10-2017)
Abstract
In this paper, risk-premium (the difference between the future prices and expected future spot price) in US crude oil futures market over the period of 1989:1 to 2012: 11 is investigated, and then variability of risk-premium through time is explained. In addition, risk premium in different time horizons of US crude oil futures market is predicted using BVAR and VAR models. The results showed that significantly 10% risk-premium existence in US crude oil futures market is approved for all time horizons (one month, two months, three months and four months), and on the other hand,by comparing RMSE of BVAR and VAR models, the results generally confirmed better predictions of risk premium by BVAR models in comparison with VAR models.
Hamidreza Izadbakhsh, Ahmad Soleymanzadeh, Hamed Davari Ardakani, Marzieh Zarinbal,
Volume 8, Issue 29 (10-2017)
Abstract
Since pension funds are among the most important and effective organizations in economic and social environments, it is critical to study their problems ahead. Asset and liability management (ALM) is a useful tool to study pension funds and their stakeholders. This paper tries to understand the key factors effecting on ALM and to analyze them using system dynamics. Fuzzy inference engine is also used to quantify the important risks in ALM. Results show that considering ALM and stakeholders’ benefits as whole and paying attention to risk factors such as changing population are the key factors for successful ALM.
Firouz Fallahi, Reza Ranjpour, Tohid Shokri,
Volume 8, Issue 29 (10-2017)
Abstract
The stochastic and β convergences of per capita energy use (PCEU) in the OPEC member countries are examined during the period 1971-2011. Several unit root tests, including the test introduced by Lee and Strazicich (2003) are used to examine the existence of the stochastic convergence in the series. Next, to study the possibility of the existence of β-convergence, the approach of Perron and Yabu (2009) is employed. Both methods allow for an endogenous structural break point in the series. In addition, the approach of Perron and Yabu (2009) is robust to the presence of a unit root and the results remain the same for the unit-root and stationary series. The results show that the PCEU in Angola, Ecuador, Iran, Nigeria, Qatar, and Venezuela had experienced beta convergence during the first regime (the period before the break point). In the second regime, the PCEU in Algeria, Angola, Saudi Arabia, Ecuador, UAE, Iran, Iraq, Libya, and Qatar shows a convergent pattern. In addition, the estimated break points are clustered and correspond to the major energy and economic crises.
Bahram Sahabi, Hossein Asgharpur, Saeed Qorbani,
Volume 8, Issue 29 (10-2017)
Abstract
In this study, using Dynamic Stochastic General Equilibrium Model (DSGE model) the hypothesis of asymmetry of monetary shocks in the Iranian business cycle during the period of 1979-2012 is tested on macroeconomic variables. The designed model broadens the analytical framework of dynamic equilibrium models with respect to the economic characteristics of an oil-exporting country. To extract business cycles, the Hodrick-Prescott filtering process has been used. The results of the research indicate that the effects of positive and negative monetary shocks during ascendancy and economic prosperity are asymmetric, so that the effect of positive shock during the recession period in the Iranian economy during the studied period was stronger than the negative shock level. On the other hand, the results show that the effect of positive shocks during the boom period in the Iranian economy on the price level changes its size in proportion to the size of the shock; however, the effect of negative shocks during the boom on the level of prices initially reduced inflation and then after a short time Inflation increases again. Therefore, it can be stated that in the economy of Iran both inflation and economic boom will increase. In the case of production and investment, this asymmetry is in a way that results in a broader expansionary policy in a recession and, in economic prosperity, the optimal political policy is contractionary.
Moloud Rahmaniani, Reza Taleblo,
Volume 8, Issue 29 (10-2017)
Abstract
The level of asymmetric information in financial markets is important for its impact on the market formation, price levels and its interaction with investment risk. Also, determining the optimal rules by policy makers and determining the trading strategy by investors is done according to the level of information symmetry in the market. In financial literature, many metrics have been developed to measure the asymmetry of market information. In recent years, another measure known as probability of informed trading (PIN) has been introduced to measure the level of asymmetric information, based on the framework of market microstructure. Larger PINs from 0 to 1 range indicate higher information asymmetry levels. In this study, using the Easley, O'Hara (1992) approach, the probability informed trading as a measure of the level of market information asymmetry for the 12 selected companies from listed companies in Tehran Stock Exchange is estimated. We used maximum likelihood to estimate parameters with R package. The results show that average of PIN varies from 0.35 to 0.4 for different companies.
Musa Khoshkalam,
Volume 8, Issue 29 (10-2017)
Abstract
Price policies are one of the most permissive policies in Iranian economic for controlling energy carrier's consumption. In addition, the non-price policies such as energy efficiency improvement are effective for controlling energy carrier's consumption. This paper assesses the economic impacts of energy efficiency improvement (in gasoline, gasoil and electric) as a non-price policy. For the purposes of this paper computable general equilibrium (CGE) model based on social accounting matrix (SAM) is used. The social accounting matrix is aggregated in 12 activities and 14 commodities. The CGE model blocks are: production block, institution block, trade block, Investment block and system constraint block. The results show that, first 10 percent improvement in energy efficiency makes the highest rebound effects (of gasoline) in the transport sector with 29.8 percent, the highest rebound effect (of gasoil) in the transport sector with 24.7% and the highest rebound effect (of electricity) in the other services sector with 24.5 percent. Second 10 percent improvement in energy efficiency causes the greatest increase in the output level of sectors (related to gasoline, gasoil and electricity) respectively, in the "transport", "transport" and "other services" by 0.62, 0.51 and 0.32 percent. Thirdly 10 percent improvement in energy efficiency increases the GDP respectively 0.17, 0.15 and 0.11 percent.
Javad Barati, Zahra Karimi-Moughari, Nader Mehregan,
Volume 8, Issue 29 (10-2017)
Abstract
Investment spillover effects include regional growth factors around the developed centers, which this study aimed investigate effects of industrial investment spillover in provinces of Iran and the quantifying of these effects. Accordingly, it uses the spatial econometrics to explore the indirect effects or industrial investment spillover. The results indicate that provinces with a higher gravity index, which are respectively Tehran, Isfahan, Khorasan Razavi, Khuzestan and Fars with a coefficient of 0.152, 0.090, 0.085, 0.083 and 0.077 respectively, have more industrial investment spillover than other provinces. In contrast, provinces with more great geographical distance from developed provinces such as Ardabil, Sistan and Baluchestan, northern Khorasan and Ilam, respectively with coefficients of 0.029, 0.031, 0.037 and 0.038, have less benefit of industrial investment spillover Compared to other regions. Also, industrial investment spillover effects for different regions, very different from each other. As for some provinces, the indirect effects are much less than direct effects and for some provinces, the indirect effects are close to direct effects. This can be due to geographical location, politics, government regulation and exposure to developed provinces.
Saeed Eisazadeh, Mohammad Kazem Naziri, Hadi Naeini,
Volume 8, Issue 30 (12-2017)
Abstract
One of the causes of unemployment is lack of fit between individual skill and needs for skills in the community. The situation of mismatch between the demand and supply of labour, particularly in terms of skills is defined as structural unemployment. Therefore, in this study quantitatively explores the impact of skill mismatches one of the main parameters of structural unemployment on unemployment rate. For this purpose of information available in the Labour Force Survey from 2006 to 2013 is used. Skill mismatch index is calculated from the root mean square error in supply and demand for skills. According to results of this study, skill mismatch have a significantly and positively effects on the unemployment rate. So thata1%increase in skill mismatch index led to an increase in the unemployment rate will be 0.13%. Therefore, creating exact information about job vacancies , reforming the contexts of courses and creating new fields in new areas according to necessities of entrepreneurs in order to updating of applicants knowledge should be mentioned.
Hosein Mohammadi, Morteza Mohammadi, Mohammad Tirgari-Seraji,
Volume 8, Issue 30 (12-2017)
Abstract
Proposed by the World Bank, in which the emphasis is on the participation of all sectors in order to achieve comprehensive development in economic, political, social and cultural fields. In this research, by using data of governance quality in 97 countries in 2000-2012, using panel data method, the effect of governance quality index and its sub-indices on the growth rate of per capita GDP is studied. To achieve the comparable results, countries have divided into five groups with low income (first group), with lower than average income (second group), with higher than average income (third group), high income and non-OECD (Group 4) and high-income and OECD (Group 5) countries. Then the effects of some explanatory variables such as governance indicator and its sub-indices on the per capita GDP is estimated for each group of countries separately. The results of the research indicate that in the studied period and for the countries under study, the governance indicator and its sub-indices do not have the same effects on GDP per capita in different groups of countries. Voice and accountability index has a positive significant effect on per capita GDP growth only in three groups of countries (third, fourth and fifth groups). Political stability index only has a positive significant effect on per capita GDP growth in the third group. The government efficiency indicator only has a positive significant effect on per capita GDP growth in the third, fourth and fifth groups. In the first group, only the regulatory quality index has a positive significant effect on per capita GDP growth. This difference in the way indicators are used implies a difference in regulatory policies in order to influence the per capita GDP growth in different groups of countries.
Zohreh Shirani Fakhr,
Volume 8, Issue 30 (12-2017)
Abstract
In this study, we estimate the demand for natural gas in the subsection manufacture of basic metals of Iran using structural time series model (STSM) over the period of time 1981-2013. Such model contains unobservable elements which have been transported to state space model with the use of kalman filter and is estimated by implementing maximum likelihood approach. Also, because the Targeting of Subsidies Plan was approved by the Iranian parliament at the end of 2010, so we evaluate the role of this plan on energy demand of industrial subsectors. Finding of the research is that, first of all the nature of the trend is smooth one. Secondly, it is changing on a nonlinear basis. The estimated demand function shows that price elasticity for natural gas in the long and short run, correspondingly, are (-0.30) and (-0.79) and production elasticities of natural gas in the short and long run, correspondingly, are (0.17) and (0.38). Furthermore, Cross elasticity for electricity and gasoline in the long and short run, correspondingly, are substitute and complementary goods. In addition, the result of evaluating effect of the Targeting of Subsidies Plan show that estimated natural gas demand functions can explain the impact of this policy.
