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Measuring the impact of road rehabilitation on spatial market efficiency in maize markets in Mozambique

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  • Xavier Cirera
  • Channing Arndt

Abstract

This article analyzes the impact of road rehabilitation on the spatial market efficiency of maize markets in Mozambique. We estimate a modified version of the Parity Bounds Model (PBM) that allows us to test the impact of road rehabilitation on spatial efficiency. This article seeks to contribute to the existing literature in three ways. First, a unique data set, where road rehabilitation episodes between market pairs are identified, is developed. Second, special care is devoted to estimation of transaction costs due to the sensitivity of the PBM model to the quality of transaction costs estimates. Finally, as opposed to most existing literature that focuses on relatively distant markets, the article focuses on spatially closed markets. We find that maize markets tend to be segmented due to high transport costs. Following road rehabilitation, inefficiency and average absolute price differentials tend to decrease, and market pairs have tended to shift toward autarky regimes. Overall, while the results point broadly toward a positive impact of road rehabilitation on spatial efficiency, they are not as strong or as robust as one would like. Large increases in fuel prices likely offset the positive impacts of road rehabilitation on transaction costs, contributing to the increase in the probability of being in an autarky regime.

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  • Xavier Cirera & Channing Arndt, 2008. "Measuring the impact of road rehabilitation on spatial market efficiency in maize markets in Mozambique," Agricultural Economics, International Association of Agricultural Economists, vol. 39(1), pages 17-28, July.
    • Handle: RePEc:bla:agecon:v:39:y:2008:i:1:p:17-28
    DOI: 10.1111/j.1574-0862.2008.00311.x
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    1. Moser, Christine M. & Barrett, Christopher B. & Minten, Bart, 2005. "Missed opportunities and missing markets: Spatio-temporal arbitrage of rice in Madagascar," 2005 Annual meeting, July 24-27, Providence, RI 19338, American Agricultural Economics Association (New Name 2008: Agricultural and Applied Economics Association).
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    Cited by:

    1. César Salazar-Espinoza & Sam Jones, 2017. "The impact of infrastructure shocks on agricultural markets: Evidence from the Zambezi river in Mozambique," WIDER Working Paper Series wp-2017-191, World Institute for Development Economic Research (UNU-WIDER).
    2. Van Campenhout, Bjorn, 2012. "Market Integration in Mozambique:: A Non-Parametric Extension to the Threshold Model," MSSP working papers 4, International Food Policy Research Institute (IFPRI).
    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. Ulimwengu, John & Funes, Jose & Headey, Derek & You, Liangzhi, 2009. "Paving the way for development?: The impact of transport infrastructure on agricultural production and poverty reduction in the Democratic Republic of Congo," IFPRI discussion papers 944, International Food Policy Research Institute (IFPRI).
    5. Channing Arndt & Sam Jones & Vincenzo Salvucci, 2015. "When do relative prices matter for measuring income inequality? The case of food prices in Mozambique," The Journal of Economic Inequality, Springer;Society for the Study of Economic Inequality, vol. 13(3), pages 449-464, September.
    6. Hailemariam Ayalew & Dagim G. Belay, 2020. "The Ethiopian Commodity Exchange and Spatial Price Dispersion: Disentangling Warehouse and Price Information effects," IFRO Working Paper 2020/01, University of Copenhagen, Department of Food and Resource Economics.
    7. Tschirley, David & Myers, Robert & Zavale, Helder, 2014. "MSU/FSG Study of the Impact of WFP Local and Regional Food Aid Procurement on Markets, Households, and Food Value Chains," Food Security International Development Working Papers 184835, Michigan State University, Department of Agricultural, Food, and Resource Economics.
    8. Acosta, Alejandro, 2012. "Measuring spatial transmission of white maize prices between South Africa and Mozambique: An asymmetric error correction model approach," African Journal of Agricultural and Resource Economics, African Association of Agricultural Economists, vol. 7(1), pages 1-13, October.
    9. Perakis, Sonja Melissa, 2012. "“Changing Spatial Maize Price Relationships in West Africa”," 2012 Annual Meeting, August 12-14, 2012, Seattle, Washington 124910, Agricultural and Applied Economics Association.
    10. Daniel Lederman & Guido Porto, 2016. "The Price Is Not Always Right: On the Impacts of Commodity Prices on Households (and Countries)," The World Bank Research Observer, World Bank, vol. 31(1), pages 168-197.
    11. Ulimwengu, John M. & Funes, Jose & Headey, Derek D. & You, Liang, 2009. "Paving the Way for Development: The Impact of Road Infrastructure on Agricultural Production and Household Wealth in the Democratic Republic of Congo," 2009 Annual Meeting, July 26-28, 2009, Milwaukee, Wisconsin 49292, Agricultural and Applied Economics Association.
    12. Wouter Zant, 2022. "Measuring Trade Cost Reductions Through a New Bridge in Mozambique: Who Benefits From Transport Infrastructure?," Journal of African Economies, Centre for the Study of African Economies, vol. 31(4), pages 384-408.
    13. Ankamah-Yeboah, Isaac, 2012. "Spatial Price Transmission in the Regional Maize Markets in Ghana," MPRA Paper 49720, University Library of Munich, Germany.
    14. Hüseyin Taştan & Yılmaz Köprücü, 2023. "Examining spatial market efficiency under different marketing regulations: The case of Turkish lemon markets," Agricultural Economics, International Association of Agricultural Economists, vol. 54(5), pages 709-727, September.
    15. Channing Arndt & Sam Jones & Vincenzo Salvucci, 2015. "When do relative prices matter for measuring income inequality? The case of food prices in Mozambique," The Journal of Economic Inequality, Springer;Society for the Study of Economic Inequality, vol. 13(3), pages 449-464, September.
    16. César Salazar & Sam Jones, 2017. "The impact of infrastructure shocks on agricultural markets: Evidence from the Zambezi river in Mozambique," WIDER Working Paper Series 191, World Institute for Development Economic Research (UNU-WIDER).
    17. Wouter (W.) Zant, 2017. "Bridges," Tinbergen Institute Discussion Papers 17-117/V, Tinbergen Institute, revised 06 Apr 2019.
    18. Miyazaki, Suguru & Shimamura, Yasuharu, 2014. "Risk, Infrastructure, and Rural Market Integration: Implications of Infrastructure Provision for Food Markets and Household Consumption in Rural Indonesia," Working Papers 81, JICA Research Institute.
    19. Sam Jones & César Salazar, 2021. "Infrastructure Improvements and Maize Market Integration: Bridging the Zambezi in Mozambique," American Journal of Agricultural Economics, John Wiley & Sons, vol. 103(2), pages 620-642, March.
    20. Meizal Popat & Garry Griffith & Stuart Mounter & Oscar Cacho, 2022. "Infrastructure investments, regional trade agreements and agricultural market integration in Mozambique," Food Security: The Science, Sociology and Economics of Food Production and Access to Food, Springer;The International Society for Plant Pathology, vol. 14(1), pages 9-22, February.
    21. Mateusz Tomal & Agata Gumieniak, 2020. "Agricultural Land Price Convergence: Evidence from Polish Provinces," Agriculture, MDPI, vol. 10(5), pages 1-20, May.
    22. Alfieri, Andrea & Arndt, Channing & Cirera, Xavier, 2007. "Distortions to Agricultural Incentives in Mozambique," Agricultural Distortions Working Paper Series 48552, World Bank.
    23. Olivier Massol & Albert Banal-Estañol, 2017. "Market Power and Spatial Arbitrage beween Interconnected Gas Hubs," Working Papers hal-03186965, HAL.

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