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This paper presents an empirical analysis of the validity of the Wagner’s Law in the context of Tanzania for the period spanning 1966-2012. It analyses the long-run and causal relationship between public expenditure and economic growth. The Augmented Dickey Fuller test was first applied to analyse the stationarity properties of the data. With regard to this test all the variables were found to be non stationary at level, but stationary after the first difference. The Johansen test of co-integration was further deployed in which we found no co-integrating vectors or no long-run relationship among the variables. Besides, the study applied Granger causality test to test the validity of the Law as it requires existence of unidirectional causality running from GDP to public expenditure. By applying this test we noted no causality running from economic growth to public expenditure and vice versa for all six versions of the law analysed in this paper. Therefore, both Johansen co-integration and Granger causality tests revealed no empirical evidence to support validity of the Law in Tanzania. This implies that that public expenditure plays no significant role and cannot be used as a policy instruments in promoting economic growth in Tanzania.
Abu-Bader, S., & Abu- Qarn, A. (2003). Government Expenditures, Military Spending and Economic Growth: Causality Evidence from Egypt, Israel, and Syria. Journal of Reseach in Business, Vol.4, no.6, 1320-1338.
Afzal, M., and Abbas, Q. (2010). Wagner’s law in Pakistan: Another look. Journal of Economics and International Finance, Vol. 2(1) pp. 012-019.
Aladejare, S. A. (2013). Government spending and economic growth: evidence from Nigeria, MPRA Paper, 43916. Retrieved from http://mpra.ub.uni-muenchen.de/43916/.
Aregbeyen, O. (2006). Cointegration, Causality and Wagner’s Law: A Test for Nigeria, 1970-2003, Central Bank of Nigeria, Economic and Financial Review, 44 (2), 1-17.
Aruwa, S. (2012). Public Finances and Economic Growth in Nigeria, Public and Municipal Finance, Vol. 1(2).
Babatunde, M. A. (2008). A Bound Testing Analysis of Wagner’s Law in Nigeria: 1970-2006, Department of Economics, University Ibadan, Ibadan Nigeria.
Bagdigen, Muhlis and Cetinta?, Hakan (2003). Causality between Public Expenditure and Economic Growth: The Turkish Case. Journal of Economic and Social Research, Vol. 1(6), 53-72.
Barro, Robert J. (1991). Economic Growth in a cross section of countries. The Quarterly Journal of Economics, vol 106(2).
Bassam AbuAl-Foul and Al-Khazali, Osamah (2003). The Long Run Relationship Between Government Expenditures and Economic Growth Case of Jordan. Economics and Economic Education Research Journal, Vol. 4(3), 49-60.
Baumol (1967). Macroeconomics of Unbalanced Growth: The Anatomy of Urban Crisis. The American Economic Review, Vol. 57(3), 415-426.
Beck, Morris,(1982). Toward a Theory of Public Sector Growth, Public Finance, 37:163-77.
Berry, W. D., & Lowery, D. (1984). The Growing Cost of Government: A Test of Two Explanations. Social Science Quarterly, 65, 735-749.
Berry, W. D., & Lowery, D. (1984). The Measurement of Government Size: Implications for the Study of Government Growth. Journal of Politics, 46, 1193-1206.
Berry, W. D., & Lowery, D. (1987). Explaining the Size of the Public Sector: Responsive and Excessive Government Interpretations. Journal of Politics, 49, 401-440.
Bhatia, (2002). Public Finance, (23rd Revised Ed.), Vikas Publishing House PVT Ltd, New Delhi, India.
Bird, R.M., (1971). Wagner’s ‘Law’ of Expanding State Activity, Public Finance/Finances Publique, 26(2), 1-26.
Brown and Jackson, (1990). Public Sector Economics, 4th Ed. Blackwell Publishers, Oxford UK and Cambridge USA.
Conte, M.A. and Darrat, A.F. (1988). Economic growth and the expanding public sector: A re-examination. Review of Economics and Statistics. 70(2): 322-30.
Demirbas, S. (1999). Cointegration Analysis- Causality Testing and Wagner’s Law: The Case of Turkey, 1950 – 1990. This paper was presented at the Annual Meeting of the European Public Choice Society that held in Lisbon (April: 7-10, 1999) at the Instituto Superior de Economiae Gestao, Universidade Technica de Lisboa.
Dolenc, (2009). Wagner’s Law is Still Applicable: Empirical Evidence For Slovenia: NG, št. 5–6/2009 Izvirni znanstveni ?lanki/Original scientific papers.
Dutt, S. D., and Ghosh, D. (1997). An Empirical Examination of the Public Expenditure- Economic Growth Correlations. Southwest Oklahoma Economic Review, Vol. 12(4), 14-26.
Engle, Robert F., and Clive W. J. Granger (1987). Cointegration and Errorcorrection: Representation, Estimation, and Testing. Econometrica 55: 251-76.
Fan, S. and Rao, N. (2003). Public Spending in Developing countries: Trends, Determination, and Impact, EPTD Discussion Paper No. 99, USA.
Ghura (1995). Macro Policies, External Forces, and Economic Growth in Sub-Saharan Africa: Chicago Journals, Economic Development and Cultural Change, Vol. 43(4), 759-778.
Goffman, J. J., (1968). On the empirical testing of Wagner’s law: a technical note. Public Finance/Finances Publiques, 3 (3), 359–364.
Granger, C. W. J. (1969). Investigating Causal Relationships by Econometric Models and Cross-Spectral Methods. Econometica 37:424-38.
Gregoriou, A & Ghosh, S (2007), The Impact of Government Expenditure on growth: Empirical evidence from Heterogeneous panel, [Retrieved from http://www.brunel.ac.uk/__data/assets/pdf_file/0006/83994/0701.pdf].
Grier K. and Tullock G. (1989). An empirical analysis of cross-national economic growth, 1951-1980, Journal of Monetary Economics, 24(1), 259-276.
Gujarati, D. N. (1995). Basic Econometrics, (3rd Ed.), New York: McGraw-Hill.
Gupta, S.P. (1967). Public Expenditure and Economic Growth: A Time-Series Analysis. Public Finance 22(4), 423–461.
Henrekson, M., (1993). Wagner’s law – a spurious relationship’? Public Finance/Finances Publiques, 48 (2), 406–415.
Hsieh, E. and Lai, K. S., (1994). Government spending and economic growth: the G-7 experience. Applied Economics, 26 (6), 535–542.
Johansen S. and Juselius K. (1990), Maximum Likelihood Estimation and Inference on Cointegration with Applications to the Demand for Money, Oxford Bulletin of Economics and Statistics, 52, 169-210.
Johansen, S. (1991), “Estimation and Hypothesis Testing of Gaussian Vector Autoregression Models”, Econometrics 59.
Kweka, J. P. and Morrissey, O. (1999). Government Spending and Economic Growth, Empirical Evidence from Tanzania (1965-1996), CREDIT and School of Economics, University of Nottingham.
Landau, Daniel, (1983). Government expenditure and economic growth: a cross-country study. Southern Economic Journal 49, 783-92.
Loizides, J. and Vamvoukas, G. (2005). Government Expenditure and Economic Growth: Evidence from Trivariate Causality Testing. Journal of Applied Economics, Vol. VIII,Adjustment, and Growth in Low- income Countries,” IMF Working, pp. 02/77.
Lowery David, and William D. Berry (1983). The Growth of Government in the United States: An Empirical Assessment of Competing Explanations, American Journai of Political Science, 27:665-94.
Mann A.J. (1980). Wagner’s Law: An Econometric Test for Mexico, 1925–1976, National Tax Journal 33(2), 189–201.
Michas, N.A. (1975), Wagner’s Law of Public Expenditures: What is the Appropriate Measurement for a Valid Test? Public Finance 30(1), 77–84.
Musgrave, R.A. (1969). Fiscal Systems, New Haven and London: Yale University Press.
Musgrave, R.A., and Musgrave, P. B (1984), Public Finance in Theory and Practice, 4th Edition, McGraw-Hill Book Company, New York.
Myrdal, Gunnar (1953). Economic Theory and Underdeveloped Regions, Popular Prakashan, Mumbai.
Neck, R., & Getzner, M. (2007). Austrian Government Expenditures: 'Wagner's Law' or 'Baumol's Cost Disease? International Business & Economics Research Journal, 6(11), 49-66.
Peacock, A.T., and Wiseman J. (1961), The Growth of Public Expenditure in the UnitedKingdom, Princeton: Princeton University Press.
Pesaran, M.H., Y. Shin., and Smith R. (2001). Bounds testing approaches to the analysis of level relationships, Journal of Applied Econometrics, 16, 289-326.
Pigou, A. C. (1928) [1946]. The Economics of Welfare, Fourth edition. London: Macmillan [earlier editions: 1920 first edition, 1924 second edition and1929 third edition].
Prakash, S. and Chowdhury, (1995). Expenditure on Education-Theory and Growth, NIEPA (Now NUEPA), New Delhi.
Prakash, S. and Ritu Sharma, (2013). Multiplier Effect on Growth of Income and Investment: Analysis of Sequential Rounds in Input Output Framework.
Prakash, S., Buragohain, Tarujyoti, and Gupta, Abha (1993). Literacy and development: An analysis of 114 countries, 26 states and 452 districts of India, Journal of Education Planning and Administration, Special Issue of Literacy and Development in Developing Countries, NIEPA, New Delhi.
Pryor, F.L., (1968), Public Expenditure in Communist and Capitalist Nations, London:George Allen and Unwin.
Ram, R., (1987), Wagner’s hypothesis in time series and cross section perspectives: evidence from ‘Real’data for 115 countries, Review of Economics and Statistics, 69 (2), 359–393.
Rostow, W. W. (1971). The stages of Economic Growth, Cambridge: Cambridge University press.
Scully, G. W. (1989). The Size of the State, Economic Growth and the Efficient Utilization of National Resources. Public Choice 63:149-164.
Sheng-Tung, C., Chi-Chung, C. & Yoonbai, K. (2011). Economic growth and government size in OECD countries: New evidence from the quantile regression approach. Economic Bulletin, 31(1), 416-25.
Wagner, A. (1950), Finanzwissenschaft, Leipzing, 3rd edn. Referred from Bird, R.M. (1971), 'Wagner's Law of Expending State Activity', Public Finance, Vol.26, p.1-26.
Wiseman, J. and Peacock, A.T. (1961), The Growth of Public Expenditure in United Kingdom, Princeton University.
(Kiangi, 2015)
Kiangi, R. F. (2015). Testing the Validity of Wagner’s Law of Government Size in Tanzania, 1966 – 2011: A Cointegration and Causality Analysis. International Journal of Academic Research in Economics and Management Sciences, 4(1), 79–95.
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