رقابت
Firouz Fallahi; Ali Dehghani
Volume 1, Issue 1 , January 2012, Pages 30-9
Abstract
This paper investigates the effect of concentration and advertising on profitability in Iranian Industrial firms, with more than 9 employees. Dynamic panel data technique is used along with the data during the period 1374-1381 to study this issue. The results show that the concentrated industries have ...
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This paper investigates the effect of concentration and advertising on profitability in Iranian Industrial firms, with more than 9 employees. Dynamic panel data technique is used along with the data during the period 1374-1381 to study this issue. The results show that the concentrated industries have a higher profitability than the others. In addition, advertising has a positive effect on the profit of the Iranian industries.
total factor productivity of production؛
Mohammad Taher Ahmadi
Volume 1, Issue 1 , January 2012, Pages 58-31
Abstract
Total factor productivity of production as a dynamic and permanent source of economic growth is influenced by many factors; that based on existing theories, human capital are known as one of the most important factors. So in the present study, the role of human capital in promoting the total factor productivity ...
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Total factor productivity of production as a dynamic and permanent source of economic growth is influenced by many factors; that based on existing theories, human capital are known as one of the most important factors. So in the present study, the role of human capital in promoting the total factor productivity of production in Iran’s economy for the period 1978 to 2005 were evaluated. Thus for human capital two dimensions of education and health and their effects along with other variables on productivity level were exerted and assessed. The results of estimate the model by using Auto Regressive Distributed Lag (ARDL) Method shows, the labor average years of schooling and the ratio of health expenditure on gross domestic product(GDP) (as the successors of human capital) have significant and positive effect on productivity level. Also the results of causality test confirm the existence of a unidirectional causal relationship between human capital and productivity.
Co2 Emissions
Mohammad Hassan Fotros
Volume 1, Issue 1 , January 2012, Pages 77-59
Abstract
This research investigates the existence of relationships between economic growth and carbon emissions in the Organization of Petroleum Exporting Countries (OPEC) for the period of 1960 to 2005. A model relating economic growth and carbon emissions is used to examine the eventual existence of Environmental ...
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This research investigates the existence of relationships between economic growth and carbon emissions in the Organization of Petroleum Exporting Countries (OPEC) for the period of 1960 to 2005. A model relating economic growth and carbon emissions is used to examine the eventual existence of Environmental Kuznets Curve (EKC) hypothesis. To test our hpothesis, the econometric panel data approach is employed. The results indicate that there is a positive relationship between gross domestic product and CO2 emissions. And, with persistence of economic growth this relationship becomes negative. That is, the estimation has given an EKC relationship between GDP and CO2 emissions in these countrries.
Economic Growth
Mohammad Lashkary
Volume 1, Issue 1 , January 2012, Pages 105-79
Abstract
The subject of this research is the impact of monetary variables on economic growth in Iran. There is a dispute among economists about the impact of monetary variables on actual ones. Some believe that change in money volume affects only the nominal production and does not have any effect on actual variables ...
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The subject of this research is the impact of monetary variables on economic growth in Iran. There is a dispute among economists about the impact of monetary variables on actual ones. Some believe that change in money volume affects only the nominal production and does not have any effect on actual variables of economy such as actual employment, actual production, and actual economic growth. The others claim, since there is monetary misgiving in economic factors the monetary variables can also influence the actual ones in short run and even long run and escalate the economic growth. The current research investigates different economic theories in this realm and tests them by applying existing information and statistics. This is an analytical and empirical research because it analyses events by experimental observations in several statistical models. On the other hand, it is a comparative study because, in the second section pertaining to the application of economics of money theories and model selection, it applies a model to measure the impact of money volume on economic variables. A descriptive method used in this research. This paper scrutinizes neutrality or non-neutrality of money during a period of 1338 to 1387 solar years in Iran with a monetarists’ approach. Findings show that there is not a significant relationship between money volume and actual economic variables, production and employment, in total and monestary policies are neutral in Iran. Gross domestic product in Iran does not fluctuate intensively except recent years and it has a normal direction. Unemployment rate fluctuates highly and is not normal.
tourism demand
Parviz Mohammadzadeh; Davood Behbudi; Majid Feshari; Siab Mamipour
Volume 1, Issue 1 , January 2012, Pages 132-107
Abstract
The main purpose of this paper is to estimate the foreign tourism demand for Iran during 1971-2005. This study proposes a new methodology – the time varying parameter (TVP) approach – to tourism demand modeling. To that end, the behavioral change of tourists over time is traced using the ...
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The main purpose of this paper is to estimate the foreign tourism demand for Iran during 1971-2005. This study proposes a new methodology – the time varying parameter (TVP) approach – to tourism demand modeling. To that end, the behavioral change of tourists over time is traced using the Kalman filter approach. Findings show that the income elasticity, price elasticity and habit formation have a regular declining trend over time. The elasticity of tourism demand with respect to the world per capita income is greater than that of the "cost of living" and "habit formation" indicators. The foreign tourism appears to be a normal good and inelastic to the domestic prices. In addition, tourism demand has decreased significantly during the Iran-Iraq war period.
Economic Growth
Mahdi Fadaee; Somayeh Nayeri
Volume 1, Issue 1 , January 2012, Pages 159-133
Abstract
In economic growth and development analysis, cultural change has a special situation. Cultural indicators can affect on production factors and economic growth endogenously and exogenously. Nowadays, in economic literature capital divided to: Physical, Human, Cultural, Social and Natural capital. In this ...
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In economic growth and development analysis, cultural change has a special situation. Cultural indicators can affect on production factors and economic growth endogenously and exogenously. Nowadays, in economic literature capital divided to: Physical, Human, Cultural, Social and Natural capital. In this research, first, we survey cultural indicators, and then point to production factors especially on capital and theatrically factors and GDP. In this research we used Auto Regressive Distributed Lag (ARDL) model to analyze short and long run relations between variables and then test the stability of model by CUSUM and CUSUMQ. Error Correction model (ECM) model is used to show how the short run shocks justify in next periods. Findings show that the model was stable and cultural indicators during 1975-2005 had significant and positive effect on economic growth of Iran.
Economic Growth
Reza Akbarian; Mahsa Famkar
Volume 1, Issue 1 , January 2012, Pages 185-161
Abstract
This paper examines the association of income inequality and economic growth with public expenditures on education as an intermediary factor in Iran. Time series data from 1974-2005 and two stage least squares (2sls) method are used to estimate a simultaneous equation system. Public expenditures on education ...
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This paper examines the association of income inequality and economic growth with public expenditures on education as an intermediary factor in Iran. Time series data from 1974-2005 and two stage least squares (2sls) method are used to estimate a simultaneous equation system. Public expenditures on education and economic growth are dependent variables and population density, human capital, past public expenditures on education and income inequality are considered as explanatory variables in the model. The results are as follows: 1-There is a negative association between income inequality and economic growth with or without public expenditures on education as an intermediary factor. 2-Public expenditures on education are negatively associated with economic growth. 3-Although the sign of past public expenditures on education with public expenditures as an intermediary factor is positive, but the coefficient of past public expenditures on education is not significant in the growth rate equation. So a judgement can not be made about its relationship with economic growth.
