Bita Shaygani, Asghar Abolhasani, Amir Behdad Salami, Ramin Khochiani,
Volume 5, Issue 17 (10-2014)
Abstract
Symmetry or asymmetry of the business cycle is an important issue in order to select the behavior patterns and prediction of macroeconomic fluctuations. Factors such as oil prices, the financial crisis, uncertainty, the delay on learning, etc., Can cause lack of symmetry in the cycle. Decomposition of the business cycle by wavelet transform, which is strong instrument for processing data, and reviews of the presence or absence of symmetry at each decomposed level, will allow to obtain more information about different frequencies of business cycle. This helps policy makers to adopt appropriate counter-cyclical policies. Wavelet analysis enabled us to investigate symmetry of high and low frequency components of seasonal GDP during 1989-2011. Using Wavelet Symlet was observed, which at least in the low-frequency component, there is asymmetry. Another advantage of this study is selecting model for prediction of each decomposed level separately. This would reduce forecast error.
Shahram Fattahi, Kiomars Sohaili, Hamed Abdolmaleki,
Volume 5, Issue 17 (10-2014)
Abstract
The fluctuations in the oil price with uncertainty, as an exogenous variable, is the most important factor affecting the fluctuations in the GDP of the countries especially OPEC. This study examines the effect of oil price uncertainty on the Iran’s GDP growth using the seasonal data for the period 1988(1)-2011(4). The model used in this study is the asymmetric VARMA, MVGARCH-M and the estimated method is quasi maximum likelihood (QML). The results indicated that there is a negative and significant relationship between oil price and economic growth over the period. Furthermore, the results show that the conditional variance-covariance process underlying output growth and change in oil price exhibits non-diagonality and asymmetry.
Hassan Rangriz, Hooman Pashootanizadeh,
Volume 5, Issue 17 (10-2014)
Abstract
In this study, the electrical energy consumption in Tehran before reduction subsidies and after targeting subsidies was examined with using a dataset collected from household subscribers Tehran Electricity Distribution Company from August 2000 to November 2012. After review and analysis values, a model was proposed for predicting power consumption. The proposed model was a combination of trigonometric coefficients and power factors. The best values were obtained by using a genetic algorithm.
Procedure of electrical energy consumption in Tehran after Implementation of subsidies reduction plan was compared with the predicted model of electrical energy consumption in Tehran before Implementation that plan. The results indicated that implementation of subsidies reduction plan reduced electrical consumption growth rates and also a little reduced consumption rate. The other results of this study contain consumption patterns in order to manage the future consumption level of electrical consumers in Tehran. Also the results showed that, because demand for electricity is inelastic to price and income in the short time, as a result price policies cannot be effective in controlling the electricity demand, then should use non-price and intensive policies to reduce the consumption of electricity.
Hadi Rafiei Darani, Mohammad Ghorbani,
Volume 5, Issue 18 (12-2014)
Abstract
The main objective of this study is to identify factors affecting labor force participation rate of economic and spatial relationships of provinces in Iran. For this purpose, Moran statisticsas univariate and spatial regression (spatial lag model) were used based ondata from the 2011. The results of Moran statisticsas univariate and spatial regression showed that Iran states are cluster status about labor economic participation. Also, the results of spatial lag regression showed that variables such as spatial lag of participation rate, industry's share of total employment, Gini coefficient, dependency ratio and the share of private sector employmentin the states have positive and significant effect on economic participation rate. With respect results, we proposed increasing financial in centives in the labor market, delegating tasksto the private sector and industrial development to create value-added.
Hassan Rangriz, Hooman Pashootanizadeh,
Volume 6, Issue 19 (3-2015)
Abstract
Extension informal and unorganized money and credit markets in Iran, is much broader than the official money markets. This problem causes a large difference between formal and informal money market loans interest rate in Iran. The large size of the informal market liquidity that can’t be guided by the monetary policies of central bank's and fiscal policies could help to increase the inflation rate in the country.
In this paper, we use the AHP method for to explore this topic that fits with the existing monetary and financial institutions, which sector is more appropriate for investment and targeted liquidity existing in society, in order to reduce inflation and stimulate growth in the industry. The results revealed the stock exchange is the best financial and investments institutions in order to reduce the inflation that caused by the high liquidity of the present.
Mahdi Sadeghi Shahdani , Ehsan Aghajani Memar ,
Volume 6, Issue 20 (7-2015)
Abstract
Fiscal decentralization that is considered a transfer of responsibilities that associated with accountability to sub – national governments, increases efficiency and providing better access to public goods in the Economy. According to the five-year development plans of Iran creating and allocating structure for provincial budgeting, fiscal decentralization generally is moving in the costs of its Provinces in order to give more responsibility to the provincial development projects. The aim of this study is an investigation of effect for partial fiscal decentralization on regional economic growth of Iran. Fiscal decentralization index is proportion of provincial's capital assets to government's capital assets, So this researches the effects of decentralization on economic growth in the framework of Solow's growth model. That the results based on data from 30 provinces between 2000 and 2007 on the panel data estimation, shows partial fiscal decentralization which has a non-linear relationship with the growth (convex shape) and partial fiscal decentralization Indicts the Optimal degree in growth of regional economy in Iran.
Davood Manzoor, Marziyeh Bahalou Horeh,
Volume 6, Issue 21 (10-2015)
Abstract
Many countries all over the world will see widespread demographic changes in the decades to come. The demographic change will affect the economy and the labor market of these countries. In this paper we employ a multi-sector computable general equilibrium model to study the impacts of demographic change on the welfare, employment and activity level of economic sectors in Iran. The model includes seven economic sector and two types of labor-skilled and unskilled. We also considere the choice between leisure and work and labor mobility in the model. The model is calibrated based on the 2001 Micro consistent matrix. Results demonstrate that in the youth period, employment and activity level of sectors will increase. Furthermore, the increase in activity level will lead to an increase in income and welfare. When the population ages, on the other hand, welfare, employment and activity level of sectors will diminish.
ر
, , , ,
Volume 7, Issue 23 (3-2016)
Abstract
Regarding to studies in different countries the research and development (R&D) play a major role in economy growth. Investment in R&D increase level of knowledge, and we have increase in production efficiency by knowledge increasing, after that economic growth will improve by productivity channel. Many studies exist on the R&D but in any of them not used the same variable for this indicator. The time series of knowledge level is not visible because of complexity the calculations and measurements of this variable. In this study the level of knowledge is intended as an unobservable variable. After that using LP and OP method the time series of this variable is extracted during the period 1974-2014 for Iranian economy. Estimates this series will be an important way for future empirical studies in research and development. Algorithms and methods that used in this paper can be run for other countries. Based on LP method, results shows during the 40 years of knowledge for Iranian economy has upward trend and the averages of grow rate of knowledge level is 0.42 percent for each year.
Elnaz Hajebi, Mohammad Javad Razmi,
Volume 7, Issue 24 (6-2016)
Abstract
A great portion of economic growth deals with education and development implies a gradual substitution of human quality instead of their quantity in development process. Improvement and higher education of women and their role in economic growth should be considered from this aspect. Recently, many empirical studies have evaluated the effect of higher education based on sexual separation on economic growth. The result of these studies shows that the higher education of women has a positive impact on economic growth. This paper, analyses the role of women higher education in economic growth of some OPEC member countries and North Africa including: Iran, Qatar, Kuwait, United Arab Emirates, Saudi Arabia, Venezuela, Algeria, Ecuador, Morocco and Tunisia. This paper uses panel data over 1991-2010 period and a modified neo-classical Mankiw-Romer-Weil growth model which all levels of education are employed. The results of this study indicate that women higher education has positive and significant effect on GDP per capita in these countries which shows the high importance of women higher education in expediting the economic growth of the studied countries.Bearing in mind, the empirical and statistical description in this study, it appears it is necessary for these countries to invest in higher education of women proportionate to the higher educations by means of adopting suitable policies for scientific development necessary for economic growth.
Dr Alireza Garshasbi, Mr Mojtaba Yusefi,
Volume 7, Issue 25 (10-2016)
Abstract
Legal and economic dimensions of sanctions, and also its diversity make it difficult to evaluate the contribution of the sanctions on macroeconomic variables; besides quantification of sanction by itself is a major problem. As the first step in this study, we try to offer a new index for representing the sanction in economic modeling. For this purpose by applying the exploratory factor analysis approach, we try to measure the mentioned index and produce the time series for the period of 1978-2010; here twelve variables which are mainly affected by the sanctions included in related process. Then, applying three-stage least squares (3SLS) method for a small macroeconomic model, the contribution of the sanctions on major economic variables such as economic growth, trade, investment and employment are evaluated. According to the findings of this study, the direct effects of sanctions are only significant in growth and term of trade equations. It seems also that there is a direct relationship between severity of the sanctions and its impact on major economic variables.
Dr Hamid Kordbacheh, Ms Zahra Ahmadi, Dr Abolfazl Shahabadi,
Volume 7, Issue 26 (12-2016)
Abstract
Over past decades there have been conflicting views on whether raising the minimum wage increases inflation. This study updates and expands earlier research into this subject and fills a void in the empirical literature by studying that the impacts of the minimum wage on inflation could be altered in the different economic situations. In framework of cost push inflation theoretical background, the direct and indirect effects of minimum wage changes on wage and inflation can be seen as taking place in several stages. The overall wage inflation outcome can, of course, also depend on the position of the economy in a particular stage of the business cycle. To examine this hypothesis, we used a Markov regime-switching model to study the impact of minimum wage increases on inflation over expansion or recession situations in Iran during the 1973- 2013 period. The comparison between a single-regime and regime shifting models provides the similar results for the sample period. The most important finding of this study is that there is no significant impact of minimum wage increases on inflation regardless of economic situations. However, the results show that the inflation shock positively impacts minimum wage in both models. In sum, our results provide a significant contribution to the empirical literature by verifying that the effectiveness of minimum wage on inflation is not dependent on the business cycle economic situation. The main policy implication for Iran's economy deriving from this study is that the minimum wages should be increased to compensate wage workers for real-wage decrease caused by inflation, without any concern about its inflationary effects.
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.
Marzieh Khakestari, Sahar Joleini, Ahmad Ameli,
Volume 9, Issue 31 (3-2018)
Abstract
This paper implements an approach to examine economic problems in which rational agents interact in dynamic markets. We use evolutionary game theory and agent-based modeling in tandem as a means to address intertemporal problems that display evolutionary attributes. This study examines the behavior of the Organization of Petroleum Exporting Countries (OPEC) in the global oil markets during the 1960s and 1970s, which sought to control global oil markets during this period.. To address this, a symmetric evolutionary game theory model is used to examine the behavior of OPEC agents as they learned to take control of their resources. An agent-based modeling approach employs computational power to implement the evolutionary game and provide detailed results. It is shown that OPEC’s behavior over the period is dependent on the growth of petroleum reserves within the member nations. Increasing realizations of natural resource reserves spur increased rates of learning and experimentation, and this enables the cartel to act cooperatively and capture control of global petroleum markets. If reserves are kept constant, OPEC lingers at a state in which the cartel does not come to dominate world oil markets.
ـavad Taherpoor,
Volume 9, Issue 31 (3-2018)
Abstract
Economic vulnerability shows the exposure of the economy to exogenous shocks and deviations from the path of growth and development. On the other hand, the resilience of the economy is the ability to recover the mentioned path of growth and development. Therefore, these two factors determine the level of welfare of the economy. Since the production factor productivity is the most important variables in determining the level of welfare of the economy, it is important to be measured the taking effect of the economic productivity from economic vulnerability and resilience. Therefore, in the this study, with employing the Panel GMM method for the period 2005-2014 and for eighteen oil-rich countries, the impact of economic vulnerability and resilience on labor productivity has been considered. The results of this study show that economic resilience has the significant and positive effect while the economic vulnerability has the significant and negative effect on the productivity of labor factor of production. Oil-rich countries, especially Iran, should be focused on reducing their economic vulnerability. To reduce economic vulnerability, shifting from single-product economy to export-diversified economy and reduce dependence on strategic goods will be suggested. To improve economic resilience, focusing on macroeconomic stability, improving institutional quality, improving the structure of markets, and improving human capital will be recommended. It is clear that these policy-induced recommendations would be so hard, but failing to achieve them, it leads to the bitter experiences such as decline in oil revenues, especially the sanction conditions.
Abolfazl Shahabadi, Mahsoomeh Ahmadi, Ali Moradi Ali Moradi,
Volume 9, Issue 31 (3-2018)
Abstract
The insurance industry as a means of transferring risk and paying damages, ensures the future and the confidence of individuals and as an investor's institution, It cumulation the saving resources and allocates it to the needs of investment and economic growth of the countries. Therefore, it is necessary to identify the factors influencing the development of this industry in countries with a low insurance penetration and action must be taken regarding reinforcement the increasing factors and Elimination its decreasing factors.In this regard, the present study has tried to determine the interaction between financial development and economic freedom indicators (total index, size of government, legal system and property rights, sound money, freedom to trade internationally and regulations) on the penetration insurance in Fifteen unsuccessful insurers will be insured over the period 2014-2000. For this purpose, the research model was estimated using panel data and generalized moment’s method. The results it shows the interaction of financial development and all index of economic freedom on insurance penetration the in selected countries have had a positive and meaningful. Also, the individual effect of financial development and total economic freedom index is positive and significant. However, their individual influence on the insurance penetration is less than their interaction. Finally, the effect of control variables including per capita income, human capital and urbanization rate on the insurance penetration in the selected countries have had a positive and meaningful and the effect of unemployment and inflation have had a negative and meaningful.
Naghmeh Honarvar, Homayoun Ranjbr, Sara Ghobadi,
Volume 9, Issue 32 (7-2018)
Abstract
This study examines the long run relationship between the efficiency component (good market efficiency and labor market efficiency) in the global competitiveness index and the variables of economic success (economic growth and unemployment) by using new econometric methods in selected countries of Asia with the average upward Global Competitiveness Index. This study, in the framework of the Panel Vector Error Correction Model (PVECM), examines the long run relationship between variables over the period 2008-2016. Estimation of long run coefficients by using Dynamic Ordinary Least Squares (DOLS) and estimating error correction temr coefficients by using the Pool Mean Group Method (PMG) and Panel Vector Error Correction Model has been done. Estimations of the coefficients of the variables of the good market efficiency and labor market efficiency by using DOLS method show that the effects of good market efficiency and labor markets efficiency on the economic growth in the long run are positive and significant. The impacts of good market efficiency and labor market efficiency on unemployment in the long run are negative and significant. Also, the results of estimating logarithmic coefficients in the DOLS method show that the most effective variable on economic success variables (economic growth and unemployment) is related to good market efficiency. The estimation of the coefficients of error correction term by using the PMG and PVECM method show that when the economic growth rate is dependent variable, since the coefficient of error correction term for this variable is negative and significant, therefore, There is a long run relationship between the rate of economic growth, good market efficiency and labor market efficiency. When the unemployment rate is dependent variable, since the coefficient of error correction term is negative and significant for this variable, there is a long run relationship between the unemployment rate, good market efficiency and labor market efficiency.
Mehdi Sajedi, Abbas Amini Fard, Masoud Nunezhad , Ali Haghighat,
Volume 10, Issue 37 (10-2019)
Abstract
In this paper ,in order to investigate the economic effects of the minimum wage policy on macroeconomic variables in the framework of the new Keynesian theory, a dynamic stochastic equilibrium general (DSGE) model has been simulated and estimated for an open and small oil exporter economy conforming with the structure of Iran's economy in the range from 1370 to 1395 .In the above mentioned model, nominal rigidity (wages and prices) and consumer habits are considered to be in line with the economic condition of the country, the labor market is classified in to sectors of unskilled and skilled labor. The main purpose of this study is to find an answer determining the annual minimum wage based on the CPI mechanism, in which the economy is exposed to supply demand shocks and monetary and financial policies, impacts on the macroeconomic variables, namely GDP, inflation, employment and total wage growth. The results of the simulation and estimation of this model, which show that the simulated data torques are consistent with real-world are based data based on calibration, show that by an increase in the minimum wage can contribute to not only a rise in inflation and total wage level, but also a fall in GPD, consumption &investment in the short time.
Younes Goli, Sohrab Delangizan, Ali Falahati,
Volume 10, Issue 38 (12-2019)
Abstract
In economic, the degree of intervention of policymakers in creation of economic stability and the response to economic fluctuations is one of the most important problems. The higher the share of efficient shocks in economic fluctuation, the lower the degree of policy response. This study evaluates the contribution of efficient shocks in creating of economic fluctuations and also estimates potential and efficient economic growth in Iran by using the seasonal data over 1988-2015 and the Dynamic Stochastic General equilibrium Approach. The results of DSGE estimation show that the high share of economic fluctuations in Iran is inefficient and monetary shocks accounted over 70 percent of economic fluctuation. Also, the estimation of potential and effective growth over 1988-2015 implies that efficient growth is smoother than potential and real growth. The sustainability of the effect of technology shock on production indicates the importance of paying attention to the growth of technology and productivity in the Iranian economy. Therefore, focusing on long-term growth has more benefits than focusing on business cycles.
