The Wagner's Law and the Income Elasticity of Government Expenditure in Iran (1985-2018)

Document Type : Research Paper

Authors

1 Department of Economic, Tehran University,Tehran, Iran

2 Department of Economic, Tarbiat Modares University, Tehran, Iran.

Abstract

Wagner's Law states that the relative size of public sector increases with the growth of per capita income. This study examines whether there is empirical evidence that Wagner’s law holds in the Iranian economy using time series annual data over the period 1985-2018 in Iran, applying cointegration and vector error correction modelling (VECM) techniques. In particular, this study provides a special focus on examining the validity of the versions of Wagner’s hypothesis, which supports the existence of long-run relationship between public expenditure and economic growth. The results of the estimates demonstrate that this law holds in Iran. The elasticity of the government expenditures with respect to national income must be greater than one for the Wagner’s law to hold. However, government’s spending on health and education has been less than expected. Therefore, considering all the government’s spending, Wagner's law is valid in Iran. On the other hand, by examining government expenditures in health and education sector as the most important part of the government expenditures, it is seen that the revenue elasticity of government expenditures in the health and education sectors is less than one. Accordingly, our estimates for Iran do not confirm this law. Although the absolute size of the public sector grows when the income increases, its rate of growth in these sectors is substantially lower than the growth of income. This could suggest that the government does not pay enough attention to health and education sectors and that these are not priorities of the government.

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References

Abu-Eideh, O. (2015). Causality between public expenditure and GDP growth in
Palestine: An econometric analysis of Wagner's Law. Journal of Economics
and Sustainable Development, 6)2(, 189-199.
Afonso, A., & Alves, J. (2016). Reconsidering Wagner's Law: Evidence from the
functions of the government. Department of Economics, Applied Economics
Letters, 24(5), 346-350.
Ageli, M. M. (2013). Wagner’s Law in Saudi Arabia 1970 - 2012: An econometric
analysis. Asian Economic and Financial Review, 3(5), 647-659.
Aschauer, D. A. (1989). Is public expenditure productive? Journal of Monetary
Economics, 23(2), 177-200.
Baumol, W. J. (1967). Macroeconomics of unbalanced growth: The anatomy of
urban crisis. The American Economic Review, 57(3), 415-426.
Bird, R. M. (1971). Wagner's ‘Law’ of expanding state activity. Public Finance,
26(1), 1-26.
Dadgar, Y. (2013). Public economics (3rd ed.). Qom, Mofid University Press.
Dadgar, Y., & Nazari, R. (2012). Wagner’s Law test in selected countries and Iran
(1980-2010). Journal of Economic Growth and Development Research, 6(1),
149-172.
Dickey, D. A., & Fuller, W. A. (1979). Distribution of the estimates for
autoregressive time series with a unit root. Journal of American Statistical
Association, 74(366), 427-431.
Dilrukshini, W. A. (2004). Expenditure and economic growth in Sri Lanka: Cointegration analysis and causality testing. Staff Studies, 34(1), 51-68.
Enders, W. (1995). Applied econometric time series. New York: John Wiley &
Sons, Inc.
Goffman, I. J. (1968). On the empirical testing of Wagner's Law: A technical note.
Public Financ, 23(2), 359-364.
Goffman, I.J., & Mahar DJ. (1971). The growth of public expenditures in selected
developing nations: Six caribbeannations. Public Financ, 26(1), 57-74.
Gupta, S. P. (1967). Public expenditure and economic growth: A time series
analysis. Public Financ, 22, 423-466.
Haji, G., Komaijani, A., & Hozhabrkiyani K. (2015). The effect of the factors
affecting the size of government in the provinces of Iran. Quarterly Journal
of Applied Economics Studiesin Iran, 4(2), 113-136.
Halicioglu, F. (2003). Testing Wagner's Law for Turkey, 1960-2000. Review of
Middle East Economics and Finance, 1(2), 31-42.
Heidari, H., & Aghayari, P. (2019). Asymmetric adjustment in order to reexamine the size of government and production of Wagner's law in Iran.
Journal of Econometric Modeling-Fourth Year, 13(1), 33-52.
Herath, S. (2010). Size of the government and economic growth: An empirical
study of Sri Lanka. SRE—Discussion Papers, WU Vienna University of
Economics and Business, 14(1), 1-29.

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History

  • Receive Date: 29 June 2020
  • Revise Date: 30 November 2020
  • Accept Date: 02 January 2021

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