Journal of Economics and Business

ISSN 2615-3726 (Online)

ISSN 2621-5667 (Print)

Published: 29 July 2019

An Econometric Testing of Traditional Import Demand Function for Cote d’Ivoire

Yaya Keho

Ecole Nationale Supérieure de Statistique et d’Economie Appliquée (ENSEA) Abidjan

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Pages: 608-617

Keywords: Import Demand, Income, Relative Price, Cote d’Ivoire


This study estimates an aggregate import demand function for Cote d’Ivoire and tests the price homogeneity assumption implied by conventional import models. Estimations are based on annual data for real import, real GDP, domestic and import prices over the period 1980-2017. The empirical results reveal that there exists a long run relationship between imports, income, domestic and import prices. In both the long and short run, imports are positively related to real income and domestic prices, and negatively related to foreign prices. The demand for imports is found to respond much more strongly to changes in domestic price rather than income and import price. The study also shows that the assumption of price homogeneity does not hold, implying that the relative price formulation of import demand function is inappropriate in the case of Cote d’Ivoire.


  1. Afzal, M. (2001). Import Function for Pakistan: A Simultaneous Equation Approach. The Lahore Journal of Economics, 6(2), 109-116.

  2. Babatunde, M. A. & Egwaikhide, F. O. (2010). Explaining Nigeria’s Import Demand Behaviour: A Bound Testing Approach. International Journal of Development Issues, 9(2), 167-187.

  3. Baek, J. (2015). Empirical Evidence on Korea’s Import Demand Behavior Revisited. Research in Applied Economics, 7(2), 11-20. 

  4. Bahmani-Oskooee, M. & Niroomand, F. (1998). Long-run price elasticities andthe Marshall-Lerner condition revisited. Economics Letters, 61(1), 101-109.

  5. Bardsen, G. (1989). Estimation of Long-run Coefficients in Error Correction Models. Oxford Bulletin of Economics and Statistics, 51, 345-350.

  6. Bathalomew, D. (2010).  An Econometric Estimation of the Aggregate Import Demand Function for Sierra Leone. Journal of Monetary and Economic Integration, 10(1), 5-24.

  7. Box, G. E. P. & Cox, D. R. (1964). An Analysis of Transformations. Journal of the Royal Statistical Society (Series B), 26, 211-243.

  8. Brown, R.L., J. Durbin & Evans, J. M. (1975). Techniques for Testing the Constancy of Regression Relations Over Time. Journal of the Royal Statistical Society, 37, 149-92.

  9. Chani, M. I., Pervaiz, Z. & Chaudhary, A. R. (2011). Determination of Import Demand in Pakistan : The Role of Expenditure Components. Theoretical and Applied Economics, XVIII (8), 93-110.

  10. Chang, T., Y. Ho & Huang, C. (2005). A Re-examination of South Korea’s Aggregate Import Demand Function: A Bounds Test Analysis. Journal of Economic Development, 30(1), 119-128.

  11. Chimobi, O. P. & Ogbonna, B. C. (2008). Estimating Aggregate Import Demand Function in Nigeria: A Co-integration Approach. Journal of Research in National Development, 6(1), 170-182.

  12. Cheung, Y. & K. S. Lai, (1993). Finite-Sample Sizes of Johansen’s Likelihood Ratio Test for Cointegration. Oxford Bulletin of Economics and Statistics, 55(3), 313-328.

  13. Deaton, A. & Muellbauer, J. (1980). Economics and Consumer Behaviour. Cambridge: Cambridge University Press.

  14. Doroodian, K., R. K. Koshal, & Al-Muhanna, S. (1994). An Examination of the Traditional Aggregate Import Demand Function for Saudi Arabia. Applied Economics, 26, 909-915.

  15. Dutta, D. & Ahmed, N. (2004). An Aggregate Import Demand Function for India: A Cointegration Analysis. Applied Economics Letters, 11(10), 607-613.

  16. Fida, B.A., Khan, M. M. & Sohail, M. K. (2011). Revisiting Aggregate Import Demand Function in Pakistan using ARDL Methodology. American Journal of Scientific Research, 33, 5-12.

  17. Goldstein, M. & M.S. Khan (1985). Income and Price Effects in Foreign Trade, in R.W. Jones and P.B. Kenen (eds.), Handbook of International Economics, Vol.2, North-Holland, Amsterdam.

  18. Houthakker, H. S. & Magee, S. P. (1969). Income and Price Elasticities in World  Trade. Review of Economics and Statistics, 51(2), 111-125.

  19. Hye, Q. M., & Mashkoor, M. (2010). Import Demand Function For Bangladesh: A Rolling Window Analysis. African Journal of Business Management, 4 (10), 2150-2156.

  20. Inder, B. (1993). Estimating Long-run Relationships in Economics: A Comparison of Different Approaches. Journal of Econometrics, 57, 53-68.

  21. Ivohasina F. R. & Hamori, S. (2005). Import Demand Function: Some Evidence from Madagascar and Mauritius. Journal of African Economies, 14(3), 411-434.

  22. Johansen, S. & Juselius, K. (1990). Maximum Likelihood Estimation and Inference on Cointegration with Applications to the Demand for Money. Oxford Bulletin of Econometrics and Statistics, 52, 169-210.

  23. Leamer, E. E. & R. M. Stern (1970). Quantitative International Economics. Allyn and Bacon Inc., Boston, p.222.

  24. Mah, J.S. (2000). An Empirical Examination of the Disaggregated Import Demand of Korea: The Case of Information Technology Products. Journal of Asian Economics, 11, 237–244.

  25. Modeste, N. C. (2011). An Empirical Analysis of the Demand for Imports in Three CARICOM Member Countries: An Application of the Bounds Test for Cointegration. Review of Black Political Economy, 38, 53-62.

  26. Mugableh, M. I. (2017). Estimating Elasticity Function of Jordanian Aggregate Import Demand. Applied Economics and Finance, 4(2), 33-37.

  27. Murray, T. & Ginman, P. (1976). An Empirical Examination of the Traditional Aggregate Import Model. The Review of Economics and Statistics, 58, 75-80.

  28. Mwega, F. M. (1993). Import Demand Elasticities and Stability during Trade Liberalization: A Case Study of Kenya. Journal of African Economies, 2, 381-416.

  29. Narayan, S. & Narayan P. K. (2005). An Empirical Analysis of Fiji's Import Demand Function. Journal of Economic Studies, 32(2), 158-168.

  30. Narayan, S. & Narayan, P. K. (2010). Estimating Import and Export Demand Elasticities for Mauritius and South Africa. Australian Economic Papers, 49(3), 241-252.

  31. N’Guessan, C. Z. S. & Yue, Y. (2010). An Econometric Estimation of Import Demand Function for Cote d’Ivoire. International Journal of Business and Management, 5(2), 77-84.

  32. Nwogwugwu, U. C., Maduka, A. C. & Madichie, C. V. (2015). Price and Income Elasticities of Import Demand in Nigeria: Evidence from the Bound Testing Procedure. International Journal of Development and Economic Sustainability, 3(4), 91-103.

  33. Omotor, D. (2010). An Aggregate Import Demand Function for Nigeria. Economic Research 562(1), doi: 10.1080/1331677X.2010.11517397.

  34. Orcutt, G. H. (1950). Measurement of Price Elasticities in International Trade. Review  of Economics and Statistics, 32, 117-132.

  35. Pesaran H., Shin, Y. & Smith, R. J. (2001). Bounds testing approaches to the analysis of level relationships. Journal of Applied Econometrics, 16(3), 289-326.

  36. Phillips, P.C.B. & Hansen, B. E. (1990). Statistical Inference in Instrumental Variables Regression with I(1) Process. The Review of Economic Studies, 57, 99-125. 

  37. Phillips, P. C. B. & Perron, P. (1988). Testing for a Unit Root in a Time Series Regression. Biometrika, 75(2), 335–346.

  38. Raijal, A., R. K. Koshal & Jung, C. (2000). Determinants of Nepalese Imports. Journal of Asian Economics, 11, 347-54.

  39. Rehman, H. U. (2007). An Econometric Estimation of Traditional Import Demand Function for Pakistan. Pakistan Economic and Social Review, 45(2), 245-256.

  40. Sinha, S. (1997). Determinants of Import Demand in Thailand. International Economic Journal, 11(4), 73-83.

  41. Stock, J. & Watson, M. W. (1993). A simple estimator of cointegrating vectors in higher order integrated systems. Econometrica, 61(4), 783-820.

  42. Tang, T. C. & Nair, M. (2002). A Cointegration Analysis of Malaysian Import Demand Function: Reassessment from the Bounds Test. Applied Economics Letters, 9(5), 293-296.

  43. Tang, T. C. (2003). An Empirical Analysis of China's Aggregate Import Demand Function. China Economic Review, 14(2), 142-163.

  44. Tsionas, E. G. and Christopoulos, D. K. (2004). International Evidence on Import Demand. Empirica, 31(1), 43-53.

  45. Urbain, J. P. (1993). Exogeneity in Error Correction Models. Springer-Verlag, Berlin Heidelberg, New York.

  46. Zhou, Y. & Dube, S. (2011). Import Demand Functions: Evidence from CIBs. Journal of Economic Development, 36(4), 73-96.

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