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Corresponding Author:
Friday O. Alegwu, Department of Agricultural Economics, University of Agriculture, Makurdi, Nigeria

Corresponding Coauthors:
Goodness C. Aye, Department of Agricultural Economics, University of Agriculture, Makurdi, Nigeria
Benjamin C. Asogwa, Department of Agricultural Economics, University of Agriculture, Makurdi, Nigeria

Asymmetric Effect of Real Exchange Rate Volatility on Agricultural Products Export: A Case Study

(pp. 261-279)
JEL classification: C32, F10, F14, F31
Keywords: Real Exchange Rate Volatility, Asymmetry, Agricultural Products Export, Appreciation, Depreciation


This paper investigates the asymmetric effects of real exchange rate volatility on agricultural products export using Nigeria as a case study. Annual time series data covering between 1970 and 2013 were used. Real exchange rate volatility is measured using GARCH (1, 1) and subsequently the VAR model was used for analyzing the relationship. This paper through the Augmented Dickey-Fuller (ADF) and Philip Perron (PP) unit root tests confirm that all variables were stationary in their first difference. Asymmetric effects test based on the Wald statistic shows that with exception of cotton exports, the effects of real exchange rate volatility shock during appreciation and depreciation on cocoa, coffee and rubber exports are significantly different. In particular, the study revealed that in Nigeria, real exchange rate volatility have significant effects on agricultural products export negative or positive in periods of appreciation or depreciation but the magnitude of the effect during appreciation or depreciation differ depending on the export product.

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Awokuse, T.O. and Y. Yuan (2006), “Impact of Exchange Rate Volatility on U.S. Poultry Exports”, Agribusiness, 22 (2), 233-245.
Aye, G.C., R. Gupta, P.S. Moyo and N. Pillay (2015), “Impact of Exchange Rate Uncertainty on Exports in South Africa”, Journal of International Commerce, Economics and Policy, 6(1), 1-14.
Bahmani-Oskooee, M. and H. Harvey (2011), “Exchange-Rate Volatility and Industry Trade between the U.S. and Malaysia”, Research in International Business and Finance, 25(2), 127-155.
Bahmani-Oskooee, M., H. Harvey and S.W. Hegerty (2013), “The Effects of Exchange Rate Volatility on Commodity Trade between the U.S. and Brazil”, The North American Journal of Economics and Finance, 25(August), 70-93.
Cho, G., I. Sheldon and S. McCorriston (2002), “Exchange Rate Uncertainty and Agricultural Trade”, American Journal of Agricultural Economics, 84(4), 931-942.
De Vita, G. and A. Abbott (2004), “The Impact of Exchange Rate Volatility on UK Exports to EU Countries”, Scottish Journal of Political Economy, 51(1), 62-81.
Fang, W., Y. Lai and S.M. Miller (2009), “Does Exchange Rate Risk Affect Exports Asymmetrically? Asian Evidence”, Journal of International Money and Finance, 28(2), 215-239.
Foragasi, J. (2011), “The Effect of Exchange Rate Volatility upon Foreign Trade of Hungarian Agricultural Products”, Studies in Agricultural Economics, 113(1), 85-96.
Grier, K.B. and A.D. Smallwood (2013), “Exchange Rate Shocks and Trade: A Multivariate GARCH-M Approach”, Journal of International Money and Finance, 37(October), 282-305.
Huchet-Bourdon, M. and J. Korinek, (2011), “To What Extent do Exchange Rates and their Volatility Affect Trade?”, OECD Trade Policy Papers No. 119, OECD Publishing: Paris, <>.
Kafle, R. and P.L. Kennedy (2012), “Exchange Rate Volatility and Bilateral Agricultural Trade Flows: The Case of the United States and OECD Countries”, Southern Agricultural Economics Association, Paper No. 119736, 2012 Annual Meeting, February 4-7, Birmingham: Alabama.
Kandilov, I.T. (2008), “The Effects of Exchange Rate Volatility on Agricultural Trade”, American  Journal of Agricultural Economics, 90(2), 1028-1043.
Kristinek, J. and D.P. Anderson (2002), “Exchange Rates and Agriculture: A Literature Review”, AFPC Working Paper No. 02-2, Agricultural and Food Policy Center, Texas A&M University.
Lee, K., S. Ni and R.A. Ratti (1995), “Oil Shocks and the Macroeconomy: The Role of Price Variability”, The Energy Journal, 16(4), 39-56.
Mackinnon, J.G. (1991), Critical Values for Cointegration Tests, in:  R.F. Engle, C.W.J. Granger (Eds), “Long-run Economic Relationships: Readings in Cointegration”, Ch. 13,  pp. 267-276, Oxford University Press: Oxford.
Mendoza, O. and D. Vera (2010), “The Asymmetric Effects of Oil Shocks on an Oil-exporting Economy”, Cuadernos de Economía, 47(135), 3-13.
Mesike, C.S., R.N. Okoh and O.E. Inoni (2010), “Supply Response of Rubber Farmers in Nigeria: An Application of Vector Error Correction Model”, Journal of American Science, 6(9), 52-56.
Nishimura, Y. and K. Hirayama (2013), “Does Exchange Rate Volatility Deter Japan-China Trade? Evidence from Pre- and Post-Exchange Rate Reform in China”, Japan and the World Economy, 25-26(January-March), 90-101.
Oguro, Y., K. Fukao and Y. Khatri (2008), “Trade Sensitivity to Exchange Rates in the Context of Intra-Industry Trade”, IMF Working Paper 08/134, Retrieved from <>, accessed on 21/06/2008.
Orden, D. (2002), “Exchange Rate Effects on Agricultural Trade”, Journal of Agricultural and Applied Economics, 34(2), 303-312.
Oseni, I.O. (2016), “Exchange Rate Volatility and Private Consumption in Sub-Saharan African Countries: A System-GMM Dynamic Panel Analysis”, Future Business Journal, 2(2), 103-115.
Pick, D. (1990), “Exchange Rate Risk and U.S. Agricultural Trade Flows”, American Journal of Agricultural Economics, 72(3), 694 -700.
Schuh, G.E. (1974), “The Exchange Rate and U.S. Agriculture”, American Journal of Agricultural Economics, 56(1), 1-13.
Umaru, A., M.B. Sa’idu and S. Musa (2013), “An Empirical Analysis of Exchange Rate Volatility on Export Trade in a Developing Economy”, Journal of Emerging Trends in Economics and Management Sciences (JETEMS), 4(1), 42-53.
Wang, K-L. and C.B. Barrett (2007), “Estimating the Effects of Exchange Rate Volatility on Export Volumes”, Journal of Agricultural and Resource Economics, 32(2), 225-255.
Yusuf, S.A.  and A.O. Falusi (1999), “Incidence Analysis of the Effects of Liberalization Tradeand Exchange Rate Policies on Cocoa in Nigeria: An ECM Approach”, Rural Economic Development, 13, 3-14.

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Institute for International Economics
of the Genoa Chamber of Commerce

Istituto di Economia Internazionale
Camera di Commercio di Genova
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