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List of Articles
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Open Access Article
1 - The Oil shocks Effects on macroeconomics variables in some exporter and importer selected Countries
Ebrahim Hosseini nasab Mona mirkazemi modThe Oil shocks in 0847 and its effects on international economics have created many attention on oil increase prices by economists. The oil shocks in 0881 and its asymmetric influences between economic growth and oil shocks economist has focused on this relations. In th MoreThe Oil shocks in 0847 and its effects on international economics have created many attention on oil increase prices by economists. The oil shocks in 0881 and its asymmetric influences between economic growth and oil shocks economist has focused on this relations. In this study we investigated oil shocks effects on economic growth and inflation rate in exporter and importer oil countries. with using panel data method. during 0831-5112 we found that oil shocks fluctuation has significant affect on economic growth and inflation rate in both countries. Manuscript profile -
Open Access Article
2 - Water- Balance and Agro- climatic Analysis in Shiraz Region, By Thornthwaite's methods
Abbas Ali AbounooriDrought is a random characteristic of natural phenomena, brought about by the irregulardeficit or shortage of available water, affects injuriously the plant growth and reduces their yield. Drought does not begin when rain ceases but rather only when plant roots can no l MoreDrought is a random characteristic of natural phenomena, brought about by the irregulardeficit or shortage of available water, affects injuriously the plant growth and reduces their yield. Drought does not begin when rain ceases but rather only when plant roots can no longer obtain soil moisture in needed amounts. To estimate the intensity and the frequency of droughts will help to reduce the injurious effect of drought. In this Study we used the water- budget methods and Thornthwaite's aridity index and its standard deviation for Shiraz during 88<8-9228 to show the frequency and the intensity of drought effects in this place. During this period this station is faced :< times different type of droughts on that five time severe and from the years of 9222 its severity and intensity is increased. We also find out that every ten year this station will affect : times severe type of drought. The most severe drought was the years 9228,and it was repeated lower intensity in the year of 9221 Manuscript profile -
Open Access Article
3 - The relationship between government policies on environment, expenditures and Good Governance.
Katayon Jalalian Jamshid PajoyanThis research is trying to analyse and recognize the variables effecting OECD countries environment. As an index for measuring the environment pollution, we use CO1 emission, than using a panel data econometrics model to analyse the effects of economics growth and Good MoreThis research is trying to analyse and recognize the variables effecting OECD countries environment. As an index for measuring the environment pollution, we use CO1 emission, than using a panel data econometrics model to analyse the effects of economics growth and Good Governance on CO1 emission. The results show no considerable effects from these variables. Considering the history of using Green Tax in these countries, we used an econometrics model to see the effect of Green Tax on CO1 emission in OECD countries. The outcome supports the strong effect of Green Tax on CO1 emission in OECD countries. Manuscript profile -
Open Access Article
4 - Predictability Test of Stock Market Price Index in Iran Investment Market and comparing Linear and Nonlinear models predictability potentials
Karim Emami Ghodratollah EmamverdiSince the highly complicated Time Series such as Stock Market Prices are usually stochastic, their changes are assumed to be unpredictable. Some tests which have been used to study the statistical observations related to the economical variables e.g. Stock Market Price, MoreSince the highly complicated Time Series such as Stock Market Prices are usually stochastic, their changes are assumed to be unpredictable. Some tests which have been used to study the statistical observations related to the economical variables e.g. Stock Market Price, are often go wrong while encountering the chaotic data and recognize them as stochastic ones, though these data are actually generated from the deterministic systems which bear few tribulations. For this reason the predictable and non-linear tests such as HURST, BDS, Runs Test, and Correlation Dimension have been used to study the existence of deterministic chaotic trend and non-linear process in Time Series of Daily Stock Market Price Index of TEHRAN STOCK EXCHANGE from 23 rd October, 2000 to 24 th September, 2002. The result of the above mentioned tests shows the predictability and the existence of a non-linear process in the sample data. After the illustration of predictability and the non-linear process in daily stock index data, then the linear time series models (AR), non-linear (GARCH) and Artificial Neural Network (ANN) have been estimated to present a suitable model for predicting the Stock Price Index. Comparing the potential of predictability of these models by such criteria as: CDC, RMSE, MAE, MAPE and U-THEIL inequality coefficient, it has been revealed that there is the highest potential of predictability in Artificial Neural Network models than the other ones Manuscript profile -
Open Access Article
5 - Studying the Possibility of Replacing Petrochemical Products with Natural Gas in Public Transport Sector (In case of the taxis of the city of Tehran )
Marjan Damankeshideh Emelia AkhlaghiThe rapid increase in petrol consumption in years, as well as the current restrictions regarding meeting the increasing demand for petrol with production or via import, has made executive officials, including the Ministry of Oil, warn about the current trend. They have MoreThe rapid increase in petrol consumption in years, as well as the current restrictions regarding meeting the increasing demand for petrol with production or via import, has made executive officials, including the Ministry of Oil, warn about the current trend. They have announced that if the current situation goes on, we will be faced with a crisis. Meeting such a demand is not possible both technically and financially, and we will soon encounter a dead lock situation while the increasing import of petrol is a burden to the annual budget. The availability of rich resources of natural gas in the country as an alternative to petrol to be used in public transport has made this issue one of the priorities of the energy sector. The were five scenarios assumed for the plan and the plan was studied in terms of whether or not implementing the plan would be economically beneficial in either of those scenarios. The current study analyzed the scenario in which the modification the taxis of Tehran(into running on natural gas) has been taken into consideration. Model results were analyzed according to the main scenario and the results showed that replacing natural gas with petrochemical products in the public transport is considerably beneficial, and that such a plan is economically justifiable. Manuscript profile -
Open Access Article
6 - An Investigation of the effects of transportation infrastructure on foreign direct investment in Iran (5874-2117)
Armin Rajabzadeh Mina Mahjoub laleh Mohammad Reza Abbasi AstamalStrong infrastructure cause reduction in transportation costs that this reduction is a motivation for entering regional and multinational firms and attraction of foreign investment. The aim of this research is to study the effect of transportation infrastructure on fore MoreStrong infrastructure cause reduction in transportation costs that this reduction is a motivation for entering regional and multinational firms and attraction of foreign investment. The aim of this research is to study the effect of transportation infrastructure on foreign direct investment in Iran during 5874-2117. By using time series econometric measuring; Johansen Co integration method the long-run relationship has been investigated and according to Error Correction method the short-run relations have been studied. The results show that transportation infrastructure has significantly and positive effect on foreign direct investment by coefficient of 2ه22. But in short-run there is no causative relationship between capital stock of transportation on foreign direct investment Manuscript profile -
Open Access Article
7 - A Survey of Iran’s place between Middle Eastern and Central Asia countries according to economic and environmental indexes of MDG
Javad Salahi Yashar TarverdiConspicuously enough, UN-MDG (Millennium Development Goals) indexes cover the various aspects of economic development in countries. Indeed, MDGs are collection from the World Bank and the IMF indexes which were used for monitoring economics status and every member of th MoreConspicuously enough, UN-MDG (Millennium Development Goals) indexes cover the various aspects of economic development in countries. Indeed, MDGs are collection from the World Bank and the IMF indexes which were used for monitoring economics status and every member of the UN is subjected to report the required data in former designed format and frequency. Furthermore reported data and usage of indexes provide tremendous chance to compare the countries with each other. In the year 2002, Iran has adopted a strategic vision named “Iran 1202” which is suggested that Iran is going to be the 1 st country in the ME and CA region in economic, social, cultural aspects. BY using almost 20 years long data of MDG indexes and the use of ADF and ARIMA time series models the index values of countries in 2012 are estimated and in the result by ranking Iran position among Middle Eastern and central Asian countries in the year 2012 is forecasted. Due to lack of data in some indexes a combination of graphical trend analysis and ARIMA models are used. In conclusion in the year 2012 Iran would be in the 2 high rank countries in the 1 st ,2 nd , 7 th goals of MDG. Manuscript profile
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