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This paper presents a bibliometric analysis examining investment patterns in diverse economies and their relationship with global financial transformations. The study spans from 1964 to 2024, utilising data from the Web of Science (WoS) and analysed with R Studio and CiteSpace to identify trends and shifts in academic focus on investment strategies. A dataset of 1595 articles from 554 sources was processed, revealing key trends and shifts in investment patterns across different regions. The research highlights a notable rise in academic interest since 2015, with an 8.46% annual growth rate in publications. Methodologically, thematic evolution and network visualisation techniques were used to track collaboration patterns and emerging topics. For instance, 40.94% of the articles involved international co-authorship, emphasising global interest in investment dynamics. The study reveals critical insights into foreign direct investment (FDI) trends, particularly in developing and transitional economies, and how various global financial events influence investment behaviours. The average citation rate of 2.7 per article further underscores the significance of this field. The analysis confirms that investment patterns are crucial to understanding global economic transformations, providing a foundation for policymakers to craft economic strategies aimed at promoting balanced and sustained investment growth.

Foreign direct investments are an instrument widely used by countries, both developed and emergent, to achieve their economic development. Among others benefits, discussed in the specialized literature, investment inflows accelerate production, improve productivity, facilitates the transfer of technology, raise the qualification oh human capital, contributes to create new jobs and to boost the economic growth of the host countries. The main purpose of the research is to examine the short and long runs relationships between foreign direct investment (FDI) and economic growth in Algeria. To carry out our investigation, the time series data of the two variables are used over the period 1990-2023. This period covers the span time in which data on the volume of foreign direct investments are available. To achieve the research purpose, an ARDL model is built based on the unit root methodology of the Augmented Dickey Fuller and Phillips  Perron tests. The findings of the study show that the foreign direct investment (FDI) and economic growth are cointegrated, indicating the existence of a long relationship among them. They establish also that foreign direct investment (FDI) has a positive impact on economic growth. Building on the research results, Algerian decision makers should take the required actions to improve the climate business, making it more attractive for foreign investors.

In this paper, the effect of population aging on economic growth in a closed economy in which the element of human capital is endogenously formed is simulated. For this purpose the computable generalized Diamond overlapping generation’s model are used for a period of 50 years. First, the dynamic effect of aging on macroeconomic variables, especially economic growth, are simulated in the baseline scenario (current state of the Iranian economy).Then the dynamic effects of public policies under different scenarios of human capital and pensions ratios on economic growth for a period of 50 years are simulated. The results of the model showed that the government's general policies to increase human capital increase the share of skilled labor (effective labor) and therefore have a growth effect. At values ​​of public policy tools above the baseline scenario​​(industrial status), the effect of productivity on aging prevails and long-term growth increases.In addition, the results showed that increasing the ratio of pensions to the level of developed countries encourages demand-based economic growth, but has a level effect and does not change long-term growth. The results show that increasing aging, if combined with government policies to promote human capital, can potentially offset the negative impact of aging on growth.

This study investigated the factors that leads to economic uncertainty which may influence the petrochemical companies returns in various market conditions regarding their various levels of capital. To meet this object, we used quarterly data on government’s current expenditures, general government revenues, liquidity, GDP, and exchange rate, as the political variables for the years 1384-1397. Considering the type of available time series, we exercised the ARIMA-GARCH model to create an indicator to show the uncertainty of economic policies. We used the result to estimate the quantile regression model, along with other factors affecting corporate returns, including the price of the OPEC oil basket and the real rate of returns and market exchange rate. The results of this study indicated that in the bearish market, the greatest negative effect of each economic policy uncertainty is on the companies with lesser capital. Moreover, the intensity of this effect decreases as the market tends to change from bearish to bullish, and finally the economic policy uncertainty will have the least impact on companies with bigger capital.

In recent decades, the effect of financial development on real sector growth has been discussed from different aspects. This paper focuses on financial structure and explains the role of bank-based and market-based financial structures on economic growth by classifying the literature. Using the FMOLS method for the period 1979-2016, the effects of financial structure and banking structure on per capita GDP and sectors’ growth (agriculture, industry, and services) in Iran are estimated. Empirical findings indicate that discriminating policies and bias in financial structure in favor of a specific sector has a negative effect on real sector growth, especially agriculture and industry. Therefore, in support of the design of a balanced financial structure, it is recommended that the state should avoid any intervention or discrimination in favor of a specific sector. In the case of banking structure, the findings show that increasing the financial strength of banks encourages economic growth.

One of the prevalent theoretical models for understanding the historical roots of the underdevelopment of various societies is the new institutionalist theory of institutional quality improvement which emphasizes the fundamental origins of economic growth. According to this theory, societies with inclusive institutions will experience a sustainable economic growth and development by creating a creative destruction process and a generative rent distribution while moving toward evolutionary cycles. Societies with extractive institutions, however, will lag behind and decline in the long run due to the dominance of rent relations and the non-generative rent distribution while moving toward vicious cycles. During the second Pahlavi period, despite its short-term experience of economic growth, Iran moved to vicious cycles instead of evolutionary ones; therefore, in order to investigate this issue, the reasons for the lack of sustainable economic growth during this period will be addressed using the theory of institutional quality improvement. To this end, one of the most important institutional barriers to economic growth in this period will be addressed through examining the process of creative destruction on the political and economic market. The results of this study indicate that despite experiencing the short-term economic growth achieved under the shadow of extractive institutions during this period due to factors such as power struggles, dominance of personal relations over affairs, the non-generative rent distribution etc., the process of creative destruction did not take shape on the political and economic market, so that despite the abundance of sources of income and foreign aid, Iran could not maintain its economic growth and development.

In some economic theories emphasizing the positive relationship between financial and real sector development in economy, privatization of financial markets and institutions and increasing private sector share is the dominant approach to financial development. However, private banks performance in some countries have shown different results compared to the goals had been set. Lack of proper economic and institutional environment has led to adverse results of private banks. Considering mentioned issues, this study aims to assess the impact of private banking on the economic growth rate in Iran based on the seasonal data form 2003 till 2018 using Autoregressive Distributed Lag (ARDL) technique. Results of the study have shown that financial development has a positive impact on the growth rate of economy, while, as the market share of private banks has increased, it had a negative effect on the economic growth. The main cause of this negative relationship is undesirable institutional environment which private banks are working in. Therefore, preparing suitable institutional framework is a condition to gain the private banks’ advantages. Central bank constant supervision alongside the enforcement authority prohibiting private banks from managing economic firms and the presence in the alternative markets are the main preconditions.

Natural capital has been introduced in growth models recently in order to address the growth differences among the countries. In this context, the objective of this study is to examine the role of introduced indices for natural capital in Iranian economic growth. To get the objective, Solow neoclassical growth model using the data for 1980-2015 was applied. The applied indices include ecological footprint, biological capacity, ecological footprint-capacity difference, ecological tension, and agricultural land. The findings showed a significant fluctuation of the natural capital indices contribution to growth. Production elasticity with respect to ecological footprint found to be in the rage of 0.02-0.04 while the corresponding values for biological capacity and agricultural land tends to increase, ranging from 0.10 to 0.15. The corresponding values for physical capital fall into the range 0.12-0.17. In addition, the appropriateness of CES production function revealed the validity of constant returns to scale assumption in Iranian economy.

The relationship between economic growth and inflation is one of the long-standing issues in macroeconomics, which is theoretically and politically confronted with many controversies. This is especially important for the Iran's economy, which seeks to achieve price stability and accelerate economic growth. In this regard, the present study has used continuous wavelet transformation to provide a new insight into the relationship between economic growth and inflation with time-frequency analysis in 1369:2–1397:2. The results show that in the long run (more than 4 years), an increase (decrease) in economic growth is accompanied by a decrease (increase) in inflation. In addition, the increase in economic growth has caused inflationary pressures in limited form and in short run (1380-1383). Therefore, it is recommended that policy makers focus more on economic growth in the long run.

Oil price shocks have direct and indirect impacts on the economies of oil-exporting and oil-importing countries. The direct impacts are through demand and supply channels and the indirect (spillover) impacts are through interaction between the countries. Most studies have focused on the direct effects of the oil price shocks in a specific country or a region and research works on indirect impacts are limited. In this research, the direct and indirect effects (spillover) of oil shocks on both groups of oil-exporting and oil-importing countries are estimated using a dynamic system model. The spillover effects are defined and measured by the “Trade Ratio” and “Weighted Average Economic Growth” indicators. The sample includes 30 oil-exporting and oil-importing countries with a share of 73 percent of the world’s economy. The results show that a positive oil price shock reduces economic growth in oil-importing countries and increases it in oil-exporting countries, but international trade between the oil- exporting and oil-importing countries mitigates the impact of oil shocks on economic growth of both groups.

Considering the role of creativity, innovation and entrepreneurship in economic growth and development, addressing these issues can be of particular importance. Particularly, the effect of these variables on economic growth is ambiguous and the need for empirical examination of this relationship seems to be necessary. Some studies, including Schumpeter (1947) and Roemer (1986), have highlighted the prominent role of entrepreneurship and innovation in the process of economic growth. The main purpose of this study is to investigate the effect of innovation (patent index) and entrepreneurship on the economic growth of selected countries, using GLS estimation method. For this purpose, data from 20 selected countries during the period 2001-2015 and the panel data approach have been used. The results of the model indicate that these two variables have a positive and significant effect on economic growth in the above countries ؛So that 1 percent increase in the rate of entrepreneurship and innovation (the number of patents registered) resulted in an increase of 13 and 4 percent, in the growth rate of these countries, respectively. Therefore, in the present study, creating an efficient innovation and entrepreneurship system is considered necessary to achieve appropriate economic growth.

The results of many studies show that rigid regulations on product and labor markets are considered as a key factor in weakening the employment conditions and have led to high unemployment rates. Given the complicated regulations in the countries of the Middle East and North Africa (MENA), studying the great dynamics of deregulation can give useful guidelines for lawmakers and policy makers. The aim of this paper is to study the effect of deregulations of commodity and labor markets on the growth and the unemployment rate in 20 MENA countries using GMM method and Panel VAR approach during the period 2005 – 2017. The results of this study show that deregulation in product and labor markets in the short run will reduce economic growth, increase unemployment and lead to recession. But in the long run, it will increase economic growth and reduce unemployment. The labor market reforms, as opposed to product market reforms, do not lead to major dynamics in economic growth. For policy-making in MENA countries, deregulation in the product market has priority over the labor market, since it has a stronger impact on the wavelength and durability of the effects.

One of pleasant subjects for economists, in the field of Macro-political economy, is investigating the impact of relevant factors on financial corruption. This study aims to investigate the effect of economic and political factors on financial corruption, economic growth, and the size of government as well as their interaction effects in the selected oil producing countries over the 2003-2014 period. To estimate the model, system panel data approach is applied based on Generalized Method of Moments (GMM) estimator. The results showed that an improvement in the economic growth, size of government, democracy, rule of law and access to sound money variables decrease financialcorruption of selected oil producing countries. Also, improving the size of government, political stability, democracy, business regulations variables and decreasing financial corruption has led to economic growth of the selected countries. Finally, improving economic growth, increasing oil revenues and urbanization has increased the size of government in these countries.

Population aging was one of the most important concerns of the last century all over the world. In this study, in order to investigate the effect of demographic changes on some macroeconomic variables, Diamond two-stage overlapping generation model (OLG model) is applied. In this model, we consider an economy inhabited by two-period lived overlapping generations, the length of each period is considered thirty years. From the life cycle perspective, the first period represents working period and the second one is considered as the retirement period. This model consists of three sectors: household, government and production which operate in a competitive market. Simulations indicate that 6 components affect the economic growth: labor supply, savings rate, capital deepening and public investment have positive effects and elder labor supply and tax have negative effects on growth. The component of capital deepening and public investment respectively has the strongest impact on economic growth. The model has some predictions based on the replacement of endogenous growth with exogenous growth. Predictions about endogenous and exogenous growth shows the replacement has negligible impact on the results.

Given the existence of a mutual relationship between human health and economic growth in societies, determining factors influencing human health can be effective in formulating executive policies and plans. The present study is designed to assess the effects of economic growth, government consumption expenditures and age dependency rate on health expenditures in Islamic countries of D-8 group during 1997-2014. Regarding the results of stationary tests, a new approach to panel econometric data -Panel Auto-regressive Distribution Lag (Panel ARDL) -was used to study the long-run and short-run relationship. Health goods and services for D-8 countries are considered as luxury and essential goods in the long-term and short-term. Also, two indicators of age old dependency ratio and young age dependency ratio, have a positive and negative impact on per capita health expenditure, respectively.

Achieving a higher rate of economic growth is one of the main goals of each country that policymakers often pay special attention to it. Therefore, investigating the causes of economic growth is important. Import tariffs as one of the most important factors affecting economic growth have been neglected in many previous studies. Therefore, the aim of this study is examining factors affecting economic growth in ECO countries with an emphasis on the role of import tariffs during the period 1996-2014. The results of dynamic panel data using PMG estimator show that the effect of import tariffs on economic growth in the short and long run is negative and significant. In addition, the effect of trade liberalization on economic growth in the short run is positive and significant. Therefore, by reducing import tariffs and moving toward more trade liberalization, economic growth in ECO countries increases. Furthermore, the labor force had a negative effect and human capital had a positive effect on the economic growth. Finally, results showed that physical capital had the most effect on economic growth in this group of countries. Therefore, improving the business environment, encouraging private investment, moving toward more competition in economic activities with trade liberalization, and moving toward more economic transparency are some recommendations of the current study.

In this paper, the impact of population aging on economic growth is estimated regarding the population growth factor and life expectancy index. For this purpose, the methods of differentiation, averaging and virtual variables have been utilized through the compilation of the data gathered from 146 countries during 1990-2013 aimed at controlling the unobservable factors. The results demonstrate that the negative impact of population aging on economic growth appears in countries wherein the life expectancy index is above 70 whereas in countries with a life expectancy of less than 70 years the impact of population aging on economic growth is not negative. Furthermore, the results of this research show that the population growth rate has a positive effect on economic growth only when the population above 65 years old accounts for at least 18% and a maximum of 21% of the total population. In countries wherein the population over 65 exceeds the above-mentioned percentage, the positive effect of population growth on economic growth is undermined.

The Iranian economy suffers from low economic growth despite having access to enormous reserves of natural resources. The role of investment rate as the driving force of economic growth has been the focus of much debate among macroeconomists. This raises an important question: Why does growth in Iran remain low despite of high investment? One way to answer this question is to look at the relationship between economic structures and performances. Contributing to the literature in the field, we incorporate intermediate goods in our calculation of inter sectoral resource allocation for the purposes of production analysis over the period of 1973-2011. Five national input-output tables for the years of 1973, 1986, 1991, 2001 and 2011 consisting of 19 sectors in current prices have been used in this study. The results showed that the average production multiplier is 1.8. The overall findings revealed that the structural transformation has shifted from agriculture to some industries and service sectors which differs from the experiences of developing and developed countries.

Ongoing sanctions on Iranian economy have proved to be very harmful and detrimental to Iranian economic affairs and social welfare. Evaluating the unfair impacts of these sanctions on Gross Domestic Product (GDP) and social welfare is the aim of this paper. Firstly, we have developed a generalized growth model in the presence of sanctions while treating exchange rate as a random variable. Secondly, three different forms of sanctions are introduced into the model and their bearings on national product and social welfare is studied. The first tier of the sanctions is imposed on consumption, intermediary and capital goods while exchange rate is assumed to have a random behavior. Then sanctions are also imposed on Iranian oil and gas production. We have devised several scenarios using stochastic Hamilton Bellman Jacobian value function (SHBJ) and genetic algorithm optimization methods. Our results of the first and second scenario imply that the level of social welfare is mostly affected by oil and gas sanctions while goods embargo has targeted goods production. The effects of sanctions on GDP and social welfare is represented by a concave curve. This curvature shows that the impact of sanctions on GDP and social welfare is stronger at the beginning than later on when further sanctions are introduced. In the third scenario oil, gas and goods sanctions are imposed simultaneously. Our results also show that the third scenario effects is stronger than the other two. According to the Gross Domestic Product data acquired for year 1390, oil and gas sanctions have lowered the GDP by 30 percent, while the overall reduction in GDP through all sanction collectively is estimated between 30 to 50 Percent.

Recent technological advances have increased the importance of human capital over the past years. In this paper, we study the impact of human capital on economic growth in Iran using the nonlinear STR method for the period 1345-1389. To this end, we estimate a two regime Logistic Smooth Transition Dynamic Regression (LSTR) model in which the transition variable is the logarithmic change in human capital. The results show that the impact of human capital on growth is different in two regimes. In the first regime, if the human capital growth rate is below the threshold value, the effects of human and physical capital on economic growth will be negative and positive, respectively. In the second one, human capital has positive and significant impact on economic growth. The main conclusion of the study is that it is crucial to take the type of regime into account.

Among the important factors that affect on economic growth such as physical and human capital, openness of economy etc., the role of financial intermediaries on economic growth has been overlooked. This research aims to investigate the role of financial structure and development as the indices of financial system development on economic growth. To this end, the study uses a regression analysis applying FMOLS method for the period of 1989 to 2011 for the selected Islamic countries. The results indicate that variables of financial structure and financial development have significant positive effects on economic growth. According to the findings, financial system based on market approach is more effective concerning the economic growth. Furthermore, the Granger Causality test indicates that there is a one-way causal relation between development of financial system and economic growth in the short run; however, this relationship has a two-way direction in the long run confirming the Patrick’s viewpoint of development.

In the presentstudy,the evaluation of different economic factors’ impact on income inequality in Iran has been considered during the period 1363-1390. In order to achieve this, Auto-Regressive Distributed Lag method is used. The results indicate that the rate ofeconomic growth and inflation rate havenegative influence and income tax, labour productivity and gas and oil revenue has a positive influence on income equality.Also based on the results, it can be stated that the relationship between economic growth and income distribution confims Kuznets and Kaldor’s view. The structural stability tests indicate the estimated model is stable. In addition, according to calculated elasticities, it can be concluded that revenue fromincome tax has had the most effect on reducing incomeinequality in Iran during the mentioned period.

Many economists insist that the financial market is a key factor in economic growth due to the role of financial markets in financing and capital formation in different countries. With the development of endogenous growth models in recent decades, researchers pay more attention to the relation between financial markets and economic growth. In this study, the empirical relationship between Foreign Direct Investment in dealing with financial development on economic growth investigated in 25 Islamic countries over the period 1990 to 2012 using Generalized Method of Moments (GMM). The results show that the interaction between foreign direct investment and market-based indicators of financial development causes economic growth.

Although depreciation is a crucial factor in economic growth models, little effort has been made to estimate depreciation rates. In this study, we attempt to estimate integrated fuzzy indicators for depreciation rates in 21 comparable developing countries. In the framework of fuzzy logic, first, we combine ten related variables to obtain four depreciation indicators, namely human, social, physical, and natural capital. Then the four indicators are combined to obtain an overall depreciation rate. The results indicate that remarkable gap exists among developing countries. The overall depreciation rates are at the highest level in the CIS countries (circa 0/7) and at the lowest level in some of the developing European nations (circa 0/4). Due to lack of information, the exact estimation of a combined depreciation indicator seems impossible for Iran; nevertheless, we estimate a minimum boundary for this country, which indicates the dismal situation of capital preservation in Iran.

We analyse short-run and long-run effects of government size on the economic growth of Iran ,using 1353-90 time series .the results of estimation , by using of ARDL and boundaries testing approach, indicate convergence of the dynamic model to the long-run trend. The error correction model also show that 59 present of departure from the long-run trend will be corrected in every period. The long-run estimation shows a positive relation between oil price, oil revenues and ratio of investment to the real GDP as independent variables and economic growth as dependent variable, and a negative relation between government size and a dummy variable for war and revolution as independent variables and economic growth.

New generation of growth models considers the effects of financial development on economic growth. The new financial literature takes a micro approach with emphasis on the external finance. In this research we examine the empirical relationship between capital market and economic growth, encompassing 27 superior firms of Tehran Stock Exchange during 1380-1390, which may being considered as a financial investigation in Iran’s Capital Market at the firm level. This paper is organized to examine the hypothesis that the external finance increases the sales and output growth rate of firms in Tehran Exchange, and therefore the aggregate economic growth. The results obtained in this paper through generalized method of moments (GMM) analysis indicate that financing both banks and capital market respectively, has increased sales and growth rate to 65.3 and 53.8 in our sample. Furthermore the sales growth rate of 27 firms that used external finance has a positive and significant relation with net sales ratio to fixed assets which indicate the positive role of capital market on economic growth in Iran. The Policy recommendation of this research is developing the capital market through definition and introduction of new financial instruments in order to absorb liquidity for efficient firms in Iran’s Capital Market.

Subsidies are known to distort prices, the optimal allocation of resources and economic growth and induce budget deficit and increase social costs, resulting in irreparable adverse effects on the economy. On the other hand implemetation of subsidy reform programs can have a widespread impact on economic aggregates A clearly specified trend in trajectory of macroeconomic variables is expected to better enable policy makers in planning for appropriate fiscal and monetary policy pakeges. The task of determining the best policy package, consistent with macroeconomic goals and constraints presents a genuine Stochastic Optimal Control problem. Solution for such a problem requires a practical statistical algorithm. The OPTCON2 method employed in this study seems to be a suitable method. First, the econometric relationships among the macroeconomic variables of the model is estimated using 2SLS statistical method. Subsquently an OPTCON2 prorgram is specified using C # Language in a visual studio. Simulation program for subsidies during the 5th development plan indicates a decline in economic growth for the first year, followed by a small rise in growth rate during the subsequent years. The findings also indicates an initial rise in inflation followed with a decline in later periods. It was also indicated that the unemployment rate is likely to rise in the beginning, leveling down to a given rate later.

In recent years, several studies have examined the relationship between financial development and economic growth. But even considering the same Indicators of financial development, findings of these studies have been different. The existence of non-linear relationships can be one of the reasons for these differences. In this paper using the smooth transition regression method, we examine a nonlinear relationship between financial development and economic growth in Iran. The tests of linearity, transition variable election and transition function determination results confirms the existence of non-linear relationship between financial development and economic growth by considering time trend as a transition variable. The appropriate transition function is LSTR1 that is a logistic function form with one threshold. As a result a regime change in the relationship between financial development and economic growth occurred in about 1989, ( i.e. at the end of the war ). This regime switching can also be considered as a cause for difference in findings of similar studies in Iran.

In this study we have dealt with the non-linear effects of economic growth on the energy consumption growth in countries depending on petroleum revenues (OPEC member countries)as well as the BRIC countries. For this end, the panel data from 1980 to 2006 for both groups of above-mentioned countries was employed and analyzed on the basis of threshold error correction model. The results indicate that in both group of countries, the effects of economic growth are non-linear so that the high economic growth rates (the economic growth rates more than threshold level of 0.01 for OPEC and 0.09 for BRIC) has increased the energy consumption growth with more severity. Of course, the effects of economic growth on the energy consumption growth in BRIC member countries are by far higher. Therefore, although an economic growth rate higher than threshold level may lead to environmental pollution in the OPEC member countries, but these countries should have less anxiety about the detrimental environmental effects of their economic growth compared to the BRIC countries.

This paper investigates the role of property right and regulation in credit, business and labor markets on economic growth by using two panel data models for 80 countries during 2000-2005. The first model considers legal structure and total effect of regulation on economic growth and the second model investigates three main component of regulation; i.e. regulation in credit, business and labor markets and property right on economic growth. findings of the first model show labor force, human capital, capital stock, property right and regulation have positive effect on economic growth. And according to the second model property right and regulation in credit and labor markets have positive effect on economic growth.

The annual data on economic growth and energy consumption in Iran during the period 1352-1386 is used to study the effect of energy use on the growth of Iranian economy. To that end, a smooth transition regression model is used. The selected model has two regimes and two thresholds. Regime one starts from 1353 and ends in 1362; while the second regime covers the period 1363-1386. The results show that the energy use had a negative effect on the economic growth in both regimes, and that the effect is larger in the first regime. Therefore, based on these results the growth hypothesis does not hold in the Iranian economy. This could be considered as a sign of inefficient use of energy in Iran.

The local and international environmental problems are one of the most important concerns for economists, politicians, and lawmakers. Therefore, an investigation of the relationship between economic growth and environmental pollution can be important ,because it may be used as a base for national and international environmental policies. In this study, a panel data approach was used to analyze the effect of economic growth, technical, preferential and political changes on the important air pollution factors in the 56 selected countries with different developments levels for the period 1995 - 2005.The results indicate that despite the positive effect of the economic growth on the environmental pollution, technological advances have played an important role in the reduction of sulfur and nitrogen dioxide,and in improvement of the political indices in the reduction of carbon dioxide as the air pollutant.

A great deal of literature has examined the relationship between government size and economic growth. To investigate this relationship, this study applies a threshold regression model to test whether the Army curve exists in Iran as an oil exporting country. Five classification of government size include total government expenditure/GDP, government investment expenditure/GDP and government consumption expenditure/GDP, government expenditure financed by oil /GDP and government expenditure financed by tax/GDP. The result reveal that all classification except government expenditure finance by tax have a threshold effect and economic growth is maximum when government expenditure is between 23 to 30 percent of GDP.

The neo-classical growth models explain the difference between economic growth of economies as a result of difference in economic factors such as capital (in the form of fiscal and human) and factor productivity، but according to new institutional economist those differences in fact originate from institutional qualities and structures in different countries. In this regard، the main reason of having low level of per capita income in less developed countries is the lack of good quality institutions for economic activities and capital accumulation.Researches show the positive impacts of institutions on economic growth in different economies. In this study، we investigate evaluate the effects of institutional qualities and other economic factors on economic growth in 50 countries for the period of 1996 - to 2005. Institutional quality is formed by combination of six basic indices as followes: voice and accountibility، political stability، control of corruption، rule of law، regulatory of quality، and government effectiveness. The results show athe direct relationship between economic growth and institutional qualities.

Growth literatures indicates that human capital، education and technologicaly progress are effective factors on economic growth. Empirical studies present that natural resource abundance have an important role on economic growth in natural-resource-rich countries. This studyessaystudy essay investigates the relationship between natural resource abundance، human capital and economic growth in two cases of petroleum exporters' countries: A) Major petroleum exporters B) Other petroleum exporters. We use a panel data for The model of this paper is tested by panel data for the period 1970-2004. The results output of models indicate that physical investment and openness have positive impact on economic growth، and resource abundant and government expenditure ae inversely related with economic growth.، but hHuman capital hasve a different impact inin the two cases sample of paper; so that human capital have It has a negative impact on economic growth in the first case (A)، but while it has a positive impact on economic growth in the second case (B). So، We can conclude that human capital can be main factor to explain slow growth in resource-rich countries. Abundant of natural resource in this countries and bad usage of natural resource can be cause of negative relationship between human capital and economic growth. In other hands، Ccountries that are rich in mineral and oil resources neglect the developing of their human resources by devoting inadequate attention and expenditure to education. So these countries have lower growth rate with respect to others.

The world has experienced dramatic growth of population during 5 past years. Nowadays, demographic changes have been identified as one of key factors in development process. In this paper, the effect of age structure of population on economic growth has been examined. To do this, data on 171 countries has been used over period 1966-2004. The results indicate the significant effect of demographic variables on economic growth. Based on results, population growth , the ratio of people under 15 years old to whole population , dependency ratio of young people have negative effect and ratio of people 15-64 years old to whole population, ratio of people over 65 years old to whole population, dependency ratio of elderly people have positive impact on economic growth. The growth rates of different age groups have different effects on economic growth so that the growth rate of people years under 15 years old has the biggest effect and growth rate of active people (15-64 years old) has the smallest effect on economic growth.

This article investigates the effect of government health expenditures as a proxy for health on Iran's economic growth. In doing this the growth model of generalized Aggregate Production Function (APF), based on the growth accounting approach has been used. The basis of this model is the estimation of production function in growth accounting methodology. In order to estimate the model the Auto Regressive Distributed Lag Method (ARDL) over the period 1350- 1381 has been used. The results of the research indicate that in the long run, government health expenditures have a positive and significant effect on Iran's economic growth. Also convergence relation among government health expenditures, economic growth and other variables of the model, has been ratified. Investigating the reliability of the results there can be found a positive correlation between government health expenditures and economic growth. Investigating the stability test of the estimated models represents the estimated coefficients stability in the long run.

Structural change can contribute to economic growth through an improvement in utilization of resources along with the traditional factors such as physical capital human capital, and technology. In this paper, we investigate the impact of structural change on economic growth in the new industrialized countries (NIC). Among many variables traditionally used as proxies for structural changes, we identify 20 variables to represent the structural changes in 11 NICs for the period 1970-2004. We then use principal components and dynamic factor analysis to obtain an index for structural changes in these countries. Our estimation results obtained from the growth equation indicate that structural change has had a positive and significant effect on economic growth in NICs.

Identification of sources of disturbances in production and economic growth are amongst the most important macroeconomic discussions. There are fundamental differences between different economic schools with regard to factors creating business cycles. Research methodology of this paper is descriptive. It is based on the Iranian data for period of 1962-2005. To do this Tornvist index of total factors productivity has been in estimated. Then, using Blanchard- Quah method, temporary and permanent shocks have been decomposed. Results of study indicate that supply side shocks have significant effect on economic growth, and effects of demand side shocks on economic growth are transitory. Supply side shocks (productivity shocks) have accumulative effects on economic growth.

Investment as one of the important factors that has a positive impact on economic growth is expected to alleviate poverty in the long run. This paper studies the role of agricultural investment on economic growth and rural poverty in the rural areas of Iran. To estimate the model, we use the seemingly unrelated regression equations "SURE" and the time series date for the period 1971-2003 The results show that although agricultural investment has a positive effect on economic growth of this sector, the gains from the growth have not had a positive impact on poverty alleviation. It seems Iran agri-economic growth is not at the level that could affect the rural poverty and the benefit resulted from current growth rate does not trickle-down to the rural poor.

Freedom of choice and competition are viewed as vital factors for economic growth. In this paper, we use a growth model to examine the impact of economic freedom on the economic growth across the world countries for the period 1999-2004. Our study differs from the previous studies in terms of the modeling, the scope of the study, and the selected sample. The results, however, are consistent with those of the previous studies. Given the fact that Iran’s position in the world is low in terms of economic freedom, that economic freedom has a significant role in economic growth, it is necessary for investors and firms to have suitable conditions for transparent and accurate decision-making. Creation of the favorable economic conditions is the responsibility of the government and thus, it is necessary to have defined policies and planning for the establishment of conditions for economic freedom in the society. Creation of social condition for economic freedom of economic agents is a convenient orientation that is favorable with economic growth policies and must be internalized in the Iran's economic policies.

Over the final two decades of the 20th century, a number of formerly industrializing economics achieved levels of innovative capacity commensurate with or greater than those of some economies that were historically more innovative. In this paper, I discuss the conditions and factors affecting innovative capacity. The framework of National Innovative capacity (NIC) can explain the difference in innovation and economic growth among countries. NIC is the ability of a country to produce and commercialize a flow of innovative technology over the long term. NIC depends on the strength of a nation’s common innovation infrastructure, the environment for innovation in its leading industrial clusters, and strength of linkage between these two areas. I use this framework to find the productivity of Iran NIC. The results of the estimated equations imply that there is a weak linkage between innovation and NIC.

Facing foreign threats in the region, Iran has been increasing its defence expenditures, for the past three decades. In this paper, we study the impact of the Iranian defence expenditures on the economic growth for the period 1971-2003. We use the Keynesian macro model to show explicitly the relationship between the defence expenditures and the economic growth. Our results indicate that the defence expenditures in Iran have had negative effects on the saving and the balance of trade, and therefore, on the economic growth.

Economic growth in addition to the direct income effect on poverty has an indirect distribution effect. The main purpose of this research is to estimate the net economic growth effect on poverty in Iran during the periods 1982-1988, the first socio-economic development plan (1989-1993), the second plan (1995-1999), and a part of the third plan (2000-2001). The results indicate that poverty increased during 1982-1988. Decomposing poverty shows that the reduction in inequality alleviated the level of poverty due to the economic recession. This implies that the reduction in the share of the lower income groups were relatively smaller than that of the higher income groups. Although the poverty increased in this period,, the poor has suffered less relative to the rich. In general, throughout the economic plans era, growth has not been pro-poor, except in the third development plan; the increase in the share of higher income groups has always been relatively more than that of the lower income groups.

Economic growth and poverty alleviation have been among the most important government policies in Iran for the past three decades. This paper examines the effect of economic growth on the poverty reduction in Iran using various methodologies and approaches for the period 1995-2003 Main findings of the paper show that poverty incidence in urban and rural areas of Iran has declined, however, the intensity of poverty has declined in urban, but increased in rural areas. Furthermore, measurements of indices such as the poverty incidence,, poverty-growth curves, and the poverty equivalent growth indicate that economic growth in most years has been weakly pro-poor in both urban and rural areas, confirming the trickle down effect of growth.

Iran as a developing country possesses rich and extensive energy resources has an advantage in energy-intensive industries. In this research, Granger-causal relationship between economic growth in Iran and various energy carriers including oil products, electricity, natural gas and solid fuels are investigated using Toda and Yamamoto procedure for period 1967-2002. The results reveal that there is a unidirectional Granger-causal relationship from electricity consumption and oil products consumption to economic growth. Likewise, there is a unidirectional Granger-causal relationship from economic growth to solid fuels consumption and natural gas consumption. Estimation of error correction models reveal that in the short run and long run, there is bidirectional Granger-causality between electricity consumption and economic growth. Likewise, in the long run, a unidirectional Granger-causality runs from economic growth to natural gas consumption. Therefore, in the cases that unidirectional Granger-causality runs from energy consumption to economic growth, energy conservation policies should be designed carefully in a way that utilization of such policies doesn't have diminishing effects on economic growth. Accordingly, we suggest a set of “optimal usage” and “efficient consumption” policies in economic sectors. In the cases that unidirectional Granger-causality runs from economic growth to energy consumption, energy conservation policies could be implemented without impeding economic growth.

Revenues obtained through gas and oil sale compose a considerable and important part of the Iranian government revenue and the GDP. In this paper, after a brief review on oil sector and income resulting from its export, the authors study the literature pertaining to export instability and its impact on economic growth. Using moving average method with a five-year lag, they found a process for export divergence from which considered as a base for instability. They suggest five definitions for instability as follows: Divergence absolute value, square root of divergence, squared divergence, divergence absolute value for one unit of the estimated amount, and negative divergence. Instability is then considered as a variable in the traditional production function of Feder, which is estimated by ARDL model using five definitions of instability. The findings indicate that there is a negative relation between the first three different definitions of instability and economic growth. Regarding the fourth definition, there is no significant relation and cointegration among the variables is also doubtful. However, regarding the fifth definition, there is a positive and considerable relation between export instability and economic growth and it seems that the fifth definition is not a suitable method to define oil export instability.

Capital is considered to be the engine of economic growth and development. Developing countries, however, are short of this pivotal factor of economic well beings. Until not too long ago these countries used to resort to borrowings from abroad to furnish this shortage. But in recent years, the developing countries have faced mounting foreign debts on one hand, and their inability to payoff these debts on the other hand. They are gradually being attracted to foreign investments. In this article, the impact of FDI on economic growth has been studied. The results indicate that FDI has a positive impact on the economic growth of the five countries under study (Indonesia, Malaysia, Venezuela, Saudi Arabia and Iran). Moreover, the degree of this impact is influenced by the quality of the human capital of each country. This fact holds not only for FDI but also for domestic investments as well.

In this article, we introduce a new concept of Health Capital, and use the augmented Solow model with data from 33 developing countries to analyze the effect of health expenditures on Economic growth. The results show that in addition to physical and human capital, health capital have positive and significant effect on Economic growth, via health expenditures. Also, the Hausman test for simultaneity shows that the health expenditures variable can be affected by Economic growth.

This paper focuses on human capital as a determinant of economic growth. In this article empirical evidences relating education to economic growth are examined. In the context of neoclassical growth models, i.e. as in Cobb-Douglas production function, human capital serves as an input to production. These models expand on the neoclassical growth model of Solow, by allowing the output of a country to be an increasing function of its stock of human capital. It is shown that investment in education leads to increased output and therefore growth. Using an Ordinary Least Squares (OLS) regression function, we found that the production elasticities of the skilled labour, non skilled labor, and physical capital are respectively 0.21, 0.49 and 0.35 percentages. Our investigation concludes that schooling has a significant and substantial positive effect on productivity and GDP growth.