Testing for Long-Run Relation between Economic Growth and Export Earnings of Cocoa in Ghana using Co-Integration Techniques
Keywords:
Cointegration, VECM, Johansen, Economic Growth, ExportAbstract
ÂIn this study, we explore the causal influence of export earnings of cocoa towards economic growth (i.e., gross domestic product (GDP)). The augmented Dickey–Fuller (ADF) and the Phillips–Perron (PP) unit root tests indicate that the two series are integrated of order one, I (1). The results of the trace and the maxi-eigenvalue cointegration test based on Johansen’s procedure indicate the existence of a cointegration between export earnings of cocoa and GDP. Thus, the two variables of the study have a long-run equilibrium relationship. The vector error correction model of order two, VECM (2), was considered as the “best†model after evaluating other competing models. It is observed that, in the long-run, previous year export earnings of cocoa is positively related to economic growth. In the short run, the results revealed that the previous GDP has positive effect on current GDP; and higher export earnings of cocoa have positive effect on GDP. Feedback causality is observed between economic growth (GDP) and export earnings of cocoa. This suggests a bi-directional causality from export earnings to economic growth (GDP).
References
Amavilah, V. H., (2003), “Exports and Economic Growth in Namibia, 1968-1992â€, Economic Working Paper Series.
Aurangzeb (2006), “Exports, productivity and economic growth in Pakistan: a time series Analysisâ€, The Lahore Journal of Economics, Vol. 11(1), pp. 1-18.
Dawson, P. J. (2005), “Agricultural exports and economic growth in less developed Countriesâ€, Agricultural Economics, No. 33, pp. 145 - 152.
Glasure, Y. U. and Lee, A., (1997), “Cointegration, error correction and the relationship between GDP and energy: The case of South Korea and Singaporeâ€, Resource and Energy Economics, Vol. 20, pp. 17–25.
Hwang, D. and Gum, B., (1991), “The causal relationship between energy and GNP: The case of Taiwanâ€, Journal of Energy Development, Vol. 16, pp. 219–226.
Hyndman R. J., Koehler A. B., Ord J. K. and Snyder R. D. (2008), Forecasting with Exponential Smoothing: The State Space Approach., Springer-Verlag Berlin Heidelberg.
Jordaan, A. C. and Eita, J. H., (2007), “Export and Economic Growth in Namibia: A Granger Causality Analysisâ€, South African Journal of Economics, Vol. 75, No. 3, pp. 540-547.
Paul, S. and Bhattacharya, R. N., (2004), “Causality between energy consumption and economic growth in India: A note on conflicting resultsâ€, Energy Economics, Vol. 26, pp. 977–983.
Phung, T. B. (2011), “Energy Consumption and Economic Growth in Vietnam: Threshold Cointegration and Causality Analysisâ€, International Journal of Energy Economics and Policy, Vol. 1, No. 1, 2011, pp. 1-17.
Rangasamy, L., (2008), “Exports and Economic Growth: The Case of South Africaâ€, Journal of International Development, Vol. 21, No. 5, pp. 603-617.
Sanjuan-Lopez, A. I. and Dawson, P. J. (2010), “Agricultural exports and economic growth in developing countries: A panel co-integration approachâ€, Journal of Agricultural Economics, Vol. 61, No. 3, pp. 565-583.
Shumway R. H. and Stoffer D. S. (2010), Time Series Analysis and Its Applications With R Examples, Second Edition, Springer Science Business Media, LLC, USA.
Tang, T. C., (2006), “New Evidence on Export Expansion, Economic Growth and Causality in Chinaâ€, Applied Economics Letters, Vol. 13, pp. 801-803.
Yu, E. S. H. and Choi, J. Y. (1985), “The causal relationship between energy and GNP: An international comparisonâ€, Journal of Energy and Development, Vol. 10, pp. 249–272.
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