IDEAS home Printed from https://ideas.repec.org/p/aer/wpaper/294.html
   My bibliography  Save this paper

Market Power in Nigerian Domestic Cocoa Supply Chain

Author

Listed:
  • Joshua Olusegun Ajetomobi

    (Ladoke Akintola University of Technology)

Abstract

An efficient and integrated cocoa market in Nigeria is important if the nation is going to successfully compete with regional cocoa producers such as Cote d’Ivoire and Ghana in the international markets. At present, Nigeria produces just about 6% of the global production, while Cote d’Ivoire produces about 43% and Ghana 14%. This study, therefore, is an attempt to examine whether cocoa market liberalization reform in Nigeria has achieved its stated objective of increasing the efficiency of the cocoa supply chain. A common indicator of efficient and functioning markets is the presence of high level of integration among them; while lack of integration could be an indication of private traders’ market power tendency. The analyses are based on annual aggregate and monthly cocoa price data and done within error correction and cointegration model framework. The results indicate both vertical and horizontal integration of various markets along Nigerian cocoa supply chain. In specific terms, the results show that (i) there is no tendency towards non-competitive behaviour by major cocoa exporters in Nigeria who now interface between the world and domestic cocoa markets, and (ii) export price series closely follows world price series, while farm gate price closely follows export in the long run. In addition, the source markets are well integrated. The speed of adjustment towards long-run equilibrium, however, varies with the position of the market along the supply chain.

Suggested Citation

  • Joshua Olusegun Ajetomobi, 2015. "Market Power in Nigerian Domestic Cocoa Supply Chain," Working Papers 294, African Economic Research Consortium, Research Department.
  • Handle: RePEc:aer:wpaper:294
    as

    Download full text from publisher

    File URL: ftp://41.215.20.26/RePEc/aer/wpaper/RP294.pdf
    Download Restriction: no
    ---><---

    References listed on IDEAS

    as
    1. John Baffes & Mohamed Ihsan Ajwad, 2001. "Identifying price linkages: a review of the literature and an application to the world market of cotton," Applied Economics, Taylor & Francis Journals, vol. 33(15), pages 1927-1941.
    2. Johansen, Søren & Juselius, Katarina, 1992. "Testing structural hypotheses in a multivariate cointegration analysis of the PPP and the UIP for UK," Journal of Econometrics, Elsevier, vol. 53(1-3), pages 211-244.
    3. Saha, Bishnu & Mitura, Verna, 2008. "Price Transmission Along the Canadian Beef Supply Chain and the Impact of BSE," Agriculture and Rural Working Paper Series 54823, Statistics Canada.
    4. Hooker, Mark A., 1993. "Testing for cointegration : Power versus frequency of observation," Economics Letters, Elsevier, vol. 41(4), pages 359-362.
    5. Jean-Paul Chavas & Aashish Mehta, 2004. "Price Dynamics in a Vertical Sector: The Case of Butter," American Journal of Agricultural Economics, Agricultural and Applied Economics Association, vol. 86(4), pages 1078-1093.
    6. Jochen Meyer & Stephan von Cramon‐Taubadel, 2004. "Asymmetric Price Transmission: A Survey," Journal of Agricultural Economics, Wiley Blackwell, vol. 55(3), pages 581-611, November.
    7. Lahiri, Kajal & Mamingi, Nlandu, 1995. "Testing for cointegration: Power versus frequency of observation -- another view," Economics Letters, Elsevier, vol. 49(2), pages 121-124, August.
    8. Otero, Jesus & Smith, Jeremy, 2000. "Testing for cointegration: power versus frequency of observation -- further Monte Carlo results," Economics Letters, Elsevier, vol. 67(1), pages 5-9, April.
    9. Christopher L. Delgado, 1986. "A Variance Components Approach to Food Grain Market Integration in Northern Nigeria," American Journal of Agricultural Economics, Agricultural and Applied Economics Association, vol. 68(4), pages 970-979.
    10. Krivonos, Ekaterina, 2004. "The impact of coffee market reforms on producer prices and price transmission," Policy Research Working Paper Series 3358, The World Bank.
    11. Takamasa Akiyama & John Baffes & Donald Larson & Panos Varangis, 2001. "Commodity Market Reforms : Lessons of Two Decades," World Bank Publications - Books, The World Bank Group, number 13852, December.
    12. Johansen, Soren, 1991. "Estimation and Hypothesis Testing of Cointegration Vectors in Gaussian Vector Autoregressive Models," Econometrica, Econometric Society, vol. 59(6), pages 1551-1580, November.
    13. Wilcox, Michael D. & Abbott, Philip C., 2004. "Market Power and Structural Adjustment: The Case of West African Cocoa Market Liberalization," 2004 Annual meeting, August 1-4, Denver, CO 20084, American Agricultural Economics Association (New Name 2008: Agricultural and Applied Economics Association).
    14. Engle, Robert & Granger, Clive, 2015. "Co-integration and error correction: Representation, estimation, and testing," Applied Econometrics, Russian Presidential Academy of National Economy and Public Administration (RANEPA), vol. 39(3), pages 106-135.
    15. Harris, R I D, 1992. "Small Sample Testing for Unit Roots," Oxford Bulletin of Economics and Statistics, Department of Economics, University of Oxford, vol. 54(4), pages 615-625, November.
    16. Christine Moser & Christopher Barrett & Bart Minten, 2009. "Spatial integration at multiple scales: rice markets in Madagascar," Agricultural Economics, International Association of Agricultural Economists, vol. 40(3), pages 281-294, May.
    17. Harris, R. I. D. & Judge, G., 1998. "Small sample testing for cointegration using the bootstrap approach," Economics Letters, Elsevier, vol. 58(1), pages 31-37, January.
    18. Jones, William O., 1968. "The Structure of Staple Food Marketing in Nigeria as Revealed by Price Analysis," Food Research Institute Studies, Stanford University, Food Research Institute, vol. 8(2), pages 1-30.
    19. Zhang, Xiaoyong & Qiu, Huanguang & Huang, Zhurong, 2009. "Linking Small Scale Farmers in China with the International Markets: A Case of Apple Export Chains," International Food and Agribusiness Management Review, International Food and Agribusiness Management Association, vol. 12(3), pages 1-22, September.
    20. Bob Baulch, 1997. "Transfer Costs, Spatial Arbitrage, and Testing for Food Market Integration," American Journal of Agricultural Economics, Agricultural and Applied Economics Association, vol. 79(2), pages 477-487.
    21. Shahidur Rashid, 2004. "Spatial Integration of Maize Markets in Post-liberalised Uganda," Journal of African Economies, Centre for the Study of African Economies, vol. 13(1), pages 102-133, March.
    22. Van Campenhout, Bjorn, 2007. "Modelling trends in food market integration: Method and an application to Tanzanian maize markets," Food Policy, Elsevier, vol. 32(1), pages 112-127, February.
    23. Patrice Guillotreau & Laurent Le Grel & Michel Simioni, 2005. "Price–Cost Margins and Structural Change: Sub‐Contracting within the Salmon Marketing Chain," Review of Development Economics, Wiley Blackwell, vol. 9(4), pages 581-597, November.
    24. Martin Ravallion, 1986. "Testing Market Integration," American Journal of Agricultural Economics, Agricultural and Applied Economics Association, vol. 68(1), pages 102-109.
    25. Abdulai, Awudu, 2000. "Spatial price transmission and asymmetry in the Ghanaian maize market," Journal of Development Economics, Elsevier, vol. 63(2), pages 327-349, December.
    Full references (including those not matched with items on IDEAS)

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Rahman, Mohammad Chhiddikur, 2018. "Welfare Impact of Asymmetric Price Transmission on Bangladesh Rice Consumers," EconStor Theses, ZBW - Leibniz Information Centre for Economics, number 251114, July.
    2. Rahman, Mohammad Chhiddikur, 2020. "Welfare Impact of Asymmetric Price Transmission on Bangladesh Rice Consumers," EconStor Theses, ZBW - Leibniz Information Centre for Economics, number 242248, July.
    3. Stephan von Cramon-Taubadel, 2017. "The analysis of market integration and price transmission – results and implications in an African context," Agrekon, Taylor & Francis Journals, vol. 56(2), pages 83-96, April.
    4. Ankamah-Yeboah, Isaac, 2012. "Spatial Price Transmission in the Regional Maize Markets in Ghana," MPRA Paper 49720, University Library of Munich, Germany.
    5. Ceballos, Francisco & Hernandez, Manuel A. & Minot, Nicholas & Robles, Miguel, 2017. "Grain Price and Volatility Transmission from International to Domestic Markets in Developing Countries," World Development, Elsevier, vol. 94(C), pages 305-320.
    6. Varela, Gonzalo & Aldaz-Carroll, Enrique & Iacovone, Leonardo, 2012. "Determinants of market integration and price transmission in Indonesia," Policy Research Working Paper Series 6098, The World Bank.
    7. Varela, Gonzalo J., 2012. "Incomplete, slow, and asymmetric price transmission in ten product markets of Bolivia," Policy Research Working Paper Series 6291, The World Bank.
    8. Badolo, Félix, 2012. "Chocs de prix internationaux et transmission : cas du marché du riz au Burkina Faso," L'Actualité Economique, Société Canadienne de Science Economique, vol. 88(3), pages 317-346, Septembre.
    9. Félix BADOLO, 2011. "Transmission des chocs de prix internationaux : le cas du riz au Burkina Faso," Working Papers 201129, CERDI.
    10. Mallory Mindy & Lence Sergio H., 2012. "Testing for Cointegration in the Presence of Moving Average Errors," Journal of Time Series Econometrics, De Gruyter, vol. 4(2), pages 1-68, November.
    11. Patrick L. Hatzenbuehler & Philip C. Abbott & Tahirou Abdoulaye, 2017. "Price Transmission in Nigerian Food Security Crop Markets," Journal of Agricultural Economics, Wiley Blackwell, vol. 68(1), pages 143-163, February.
    12. Sekhar, C.S.C., 2012. "Agricultural market integration in India: An analysis of select commodities," Food Policy, Elsevier, vol. 37(3), pages 309-322.
    13. Subervie, Julie, 2011. "Producer price adjustment to commodity price shocks: An application of threshold cointegration," Economic Modelling, Elsevier, vol. 28(5), pages 2239-2246, September.
    14. Sundaramoorthy, C. & Mathur, V.C. & Jha, G.K., 2014. "Price Transmission along the Cotton Value Chain," Agricultural Economics Research Review, Agricultural Economics Research Association (India), vol. 27(2).
    15. Brian Dillon & Chelsey Dambro, 2017. "How Competitive Are Crop Markets in Sub-Saharan Africa?," American Journal of Agricultural Economics, Agricultural and Applied Economics Association, vol. 99(5), pages 1344-1361.
    16. Burke, William J. & Myers, Robert J., 2014. "Spatial equilibrium and price transmission between Southern African maize markets connected by informal trade," Food Policy, Elsevier, vol. 49(P1), pages 59-70.
    17. Kelbore, Zerihun Getachew, 2013. "Transmission of World Food Prices to Domestic Market: The Ethiopian Case," MPRA Paper 49712, University Library of Munich, Germany.
    18. Mohammad J Alam & Raghbendra Jha, 2016. "Asymmetric threshold vertical price transmission in wheat and flour markets in Dhaka (Bangladesh): seemingly unrelated regression analysis," ASARC Working Papers 2016-03, The Australian National University, Australia South Asia Research Centre.
    19. Félix Badolo, 2011. "Transmission des chocs de prix internationaux : le cas du riz au Burkina Faso," Working Papers halshs-00627189, HAL.
    20. Baker, Mindy Lyn, 2009. "Three essays concerning agriculture and energy," ISU General Staff Papers 200901010800001849, Iowa State University, Department of Economics.

    More about this item

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:aer:wpaper:294. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Joel Mathia (email available below). General contact details of provider: ftp://41.215.20.26/ .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.