Commodity Price Uncertainty and Manufactured Exports in Morocco and Tunisia: Some Insights from a Novel GARCH Model

Bouoiyour, Jamal and Selmi, Refk (2013): Commodity Price Uncertainty and Manufactured Exports in Morocco and Tunisia: Some Insights from a Novel GARCH Model. Published in: Economics Bulletin , Vol. 34, No. 1 (4 February 2014): pp. 220-233.

Abstract

This paper attempts to assess empirically the short-run dynamic between commodity price uncertainty and manufactured exports in Morocco and Tunisia. To this end, we propose a novel model Component with Multiple Threshold-GARCH (CMT-GARCH) that extends Weighted-GARCH of Bauwens and Storti (2008). Our results clearly show a positive and significant connection between commodity price volatility and manufactured exports, which is transitory for Morocco and Tunisia (except the impact of manufactured commodity price on Moroccan manufacturing sector, which is permanent).We attribute the transitory effect to the co-movements between exporters’ economic conditions and commodity price cycles, and the permanent effect to the low technological content of manufactured products and to the lack of innovative capacity.

• Item Type: MPRA Paper
• Language: English
• Keywords: Commodity price uncertainty; manufactured exports; CMT-GARCH.
• Subjects: F - International Economics > F0 - General > F00 - General; F - International Economics > F1 - Trade > F14 - Empirical Studies of Trade

References

Arezki, R., Lederman, D. and Zhao, H. (2011) “The relative volatility of commodity prices: a reappraisal” IMF Working Papers 12/168, International Monetary Fund.

Bauwens, L. and Storti, G. (2008) “A component GARCH model with time varying weights” Manuscript 1512 Studies in nonlinear dynamics and econometrics.

Bollerslev, T. (1986) “Generalized autoregressive conditional heteroskedasticity” Journal of Econometrics, 31, 307-27.

Bouoiyour, J. and Selmi, R. (2014) “Exchange volatility and trade performance in Morocco and Tunisia : What have we learned so far ?” Macroeconomics and Finance in Emerging Market Economies, Forthcoming.

Caporin, M. and McAleer, M., (2008) “Scalar BEKK end indirect DCC” Journal of Forecasting, 27(6), 537-49.

Cashin P., McDermott, C. and Scott, A. (2002) “Booms and Slumps in World Commodity Prices” Journal of Development Economics, 69, 277– 96.

Cashin, P., McDermott, C., John and Pattillo, P. (2004), “Terms of trade shocks in Africa are they short-lived or long-lived?” Journal of Development Economics, 73, pp. 727-744.

David S. J., O'Rourke, K.H. and Williamson, J.G. (2011) “Commodity Price Volatility and World Market Integration since 1700, ” The Review of Economics and Statistics, 93(3), 800-13.

Deaton, A. and Laroque. G. (1992) “On the Behaviour of Commodity Prices” Review of Economic Studies, 59 (1), 1-23.

Deaton, A. (1999) “Commodity Prices and Growth in Africa” Journal of Economic Perspectives, 13(3), 23-40.

Dehn, J. (2000) “Commodity Price Uncertainty and Shocks: Implications for Economic Growth” Working paper University of Oxford WPS/2000-12.

Ding, Z., Granger, C.W.J. and Engle, R.F. (1993) “A long memory property of stock market returns and a new model” Journal of Empirical Finance, 1, 83-106.

Dogruel, A. and Tekce, M. (2011) “Trade liberalization and export diversification in selected MENA countries” Topics in Middle Eastern and African Economies, 13, 1-24.

Francq, C. and Zakoïan, J-M. (2010) “QML estimation of a class of multivariate asymmetric GARCH models” Discussion paper CREST.

Gosten, L. R., Jagannathan, R. and Runkle, D. E. (1993) “On the relation between the expected value and the volatility of the nominal excess return on stocks” The Journal of Finance, 48 (5), 1779-1801.

Guillaumont, P. (1987) “From export instability effects to international stabilization policies” World Development, 15(5), 633-43.

Hacker, S-R. and Hatemi, J-A. (2008) “Optimal lag-length choice in stable and unstable VAR models under situations of homoscedasticity and ARCH” Journal of Applied Statistics, 35(6). 601-15.

Hansen, P.R. and Lunde, A. (2001) “A comparison of volatility models: Does anything beat a GARCH (1, 1)?” Working paper n°84, University of AARHUS.

Hausmann, R., Hwang, J. and Rodrik, D. (2007) “What you export matters” Journal of Development Economics, 12, 1–25.

International Monetary Fund, IMF, (2012) “Commodity price swings and commodity exporters ” http://www.imf.org/external/pubs/ft/weo/2012/01/pdf/c4.pdf

Larson, D-F., Varangis, P. and Yabuki, N. (1998) “Commodity Risk Management and Development” World Bank Policy Research Paper n° 1963.

Page, S. and Hewitt, A. (2001) “World commodity prices: Still a problem for developing countries” Working paper Overseas Development Institute, London.

Pyndick, R-S. (2004) “ Volatility and commodity price dynamics” the Journal of Future Markets, 24(11), 1029-47.