The role of environment and social capitals in Iranian economic growth

Document Type : Research Paper

Authors

1 Department of Agricultural Economics, Marvdasht Branch, Islamic Azad University, Marvdasht, Iran

2 Department of Agricultural Economics, Faculty of Agricultural Sciences, University of Guilan, Iran

Abstract

To date, only labour force and physical capital have been considered as factors of production in neoclassical growth patterns. But recently, the creation of differences in the level of production and income among countries, beyond the difference in physical capital, has led to more dimensions of the variable of capital being investigated. These explorations led to the arrival of variables of human and social capitals into a growth model. This study aimed to analyse the role of various types of capital in the Iranian economy. Hence, the neoclassical growth model and the data of period between 1974 and 2012 were used. Types of capital were added to physical capital, including human, social, and environmental capitals. The environmental capital was considered as carbon dioxide emission costs. The variables representing social capital included access to the internet as well as access to the telephone. In the case of human capital, three variables were used including literacy rate, enrolment rate in elementary school, as well as the students number. It was also assumed that technology, in addition to the workforce, would appear in the form of physical capital. The findings exhibited that physical capital was the most important factor in the growth of Iranian economy. However, a very small role was played by the variables of human and environmental capitals. The role of social capital has been estimated to be relatively acceptable and positive, which is about one- third to one-quarter of physical one.

Keywords

References

Annabi, N, Harvey, S, Lan, Y 2011, Public expenditures on education, human capital and growth in Canada: An OLG model analysis. Journal of Policy Modeling, 33: 852–865.
Baltagi, BH 1995, Econometric Analysis of Panel Data. Wiley, New York.
Chou, YK 2006, Three simple models of social capital and economic growth. Journal of Socio-Economics, 35: 889–912.
He, J & Richard, P 2010, Environmental Kuznets curve for CO2 in Canada. Ecological Economics, 69: 1083-1093.
Ishise. H, Sawada, Y 2009, Aggregate returns to social capital: estimates based on the Augmented-Solow Model. Journal of Macroeconomics, Elsevier, 31: 376-393.
Jalil, A & Idrees, M 2013, Modeling the impact of education on the economic growth: Evidence from aggregated and disaggregated time series data of Pakistan, Economic Modelling, 31: 383–388.
Knack, S & Keefer, P 1997, Does social capital have an economic payoff? A cross-country investigation. Quarterly Journal of Economics, 112: 1251–1288.
Lucas, R 1988, On the mechanics of economic development. Journal of Monetary Economics, 22(1), 3–42.
Managi, S, Hibi, A, Tsurumi, T 2009, Does trade openness improve environmental quality? Journal of Environmental Economics and Management, 58: 346–363.
Mankiw, NG, Romer, D, Weil, DN 1992, A contribution to the empirics of economic growth. Quarterly Journal of Economics, 107: 407-437.
Orubo, OO, Omotor, DG 2011, Environmental quality and economic growth: searching for environmental Kuznets curves for air and water pollutants in Africa. Energy Policy, 39: 4178-4188.
Qadri, FS, Waheed, A 2014, Human capital and economic growth: A macroeconomic model for Pakistan. Economic Modelling, 42: 66–76.
Rao, BB 2010, Estimates of the steady state growth rates for selected Asian countries with an extended Solow model. Economic Modelling, 27:  46–53.
Romer, PM 1986, Increasing returns and long run growth. Journal of Political Economy, 94: 1002-1037.
Romer, PM 1990, Endogenous technological change. Journal of Political Economy, 98: S71–S102. 
Roseta-Palma, C, Ferreira-Lopes & A, Sequeira, TN 2010, Externalities in an endogenous growth model with social and natural capital. Ecological Economics, 69: 603–612.
UN Statistical Databases 2012, http://data.un.org.
Caspian Journal of Environmental Sciences
Volume 18, Issue 4
October 2020
Pages 383-395

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