IDEAS home Printed from https://ideas.repec.org/a/spr/jknowl/v15y2024i1d10.1007_s13132-023-01322-9.html
   My bibliography  Save this article

Evaluating the Impacts of Subsidy Removal by Using a Linear-Quadratic Storage Model: the Case of Tunisian Sugar Industry

Author

Listed:
  • Nihed Ben Khalifa

    (University of Carthage)

  • Abdessalem Abbassi

    (University of Carthage)

  • Ahlem Dakhlaoui

    (Polytechnic School of Tunisia)

Abstract

The marketing of the Tunisian sugar industry is evolving under government budget pressures. This article sets out to evaluate the impacts of subsidy reforms in the Tunisian sugar industry using a linear-quadratic storage model. Pricing mechanisms and decisions to import and sell sugar are modeled using a partial equilibrium model. The resolution of the model allows us to determine the decision rules of imports of white sugar and those of brown sugar as well as sales according to their own lagged values, lagged variables of storage, and lagged prices. The null hypothesis of the absence of the role of storage in the decision rules is rejected. The structural parameters of the system of equations are estimated using the generalized method of moments. These parameters are, then, used to simulate the impacts of reforming the sugar pricing mechanisms. An econometric simulation exercise was carried out to study the different scenarios of the upward pricing of sugar, due to a gradual elimination of the subsidy. The simulation reveals that an increase in the selling price leads to a slight variation in the level of sugar imports and production. This is explained by the existence of the quadratic adjustment cost of imports and the inelastic demand for sugar in Tunisia. A rationalization of sugar consumption by Tunisian citizens and an encouragement of companies to refine activity are then imposed at this level. Indeed, a drop in consumption would reduce the difficulties in the sugar market in Tunisia. The Tunisian Office of Trade would import less and therefore reduce its costs and losses.

Suggested Citation

  • Nihed Ben Khalifa & Abdessalem Abbassi & Ahlem Dakhlaoui, 2024. "Evaluating the Impacts of Subsidy Removal by Using a Linear-Quadratic Storage Model: the Case of Tunisian Sugar Industry," Journal of the Knowledge Economy, Springer;Portland International Center for Management of Engineering and Technology (PICMET), vol. 15(1), pages 4673-4690, March.
  • Handle: RePEc:spr:jknowl:v:15:y:2024:i:1:d:10.1007_s13132-023-01322-9
    DOI: 10.1007/s13132-023-01322-9
    as

    Download full text from publisher

    File URL: http://link.springer.com/10.1007/s13132-023-01322-9
    File Function: Abstract
    Download Restriction: Access to the full text of the articles in this series is restricted.

    File URL: https://libkey.io/10.1007/s13132-023-01322-9?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    References listed on IDEAS

    as
    1. Elbehri, Aziz & Umstaetter, Johannes & Kelch, David R., 2008. "The EU Sugar Policy Regime and Implications of Reform," Economic Research Report 56457, United States Department of Agriculture, Economic Research Service.
    2. Meade, Birgit Gisela Saager & Grant, Jason H. & Regmi, Anita, 2010. "Trade and Welfare Impacts of Partial Liberalization of U.S. Sugar TRQs: The Application of a PE/GE Modeling Approach," 2010 Annual Meeting, July 25-27, 2010, Denver, Colorado 61657, Agricultural and Applied Economics Association.
    3. Nevo, Aviv, 2001. "Measuring Market Power in the Ready-to-Eat Cereal Industry," Econometrica, Econometric Society, vol. 69(2), pages 307-342, March.
    4. Fuhrer, Jeffrey C. & Moore, George R. & Schuh, Scott D., 1995. "Estimating the linear-quadratic inventory model Maximum likelihood versus generalized method of moments," Journal of Monetary Economics, Elsevier, vol. 35(1), pages 115-157, February.
    5. Abbassi Abdessalem & Gervais Jean-Philippe, 2010. "Evaluating Reforms in Canadian Chicken Marketing Mechanisms Using a Linear-Quadratic Inventory Model," Journal of Agricultural & Food Industrial Organization, De Gruyter, vol. 8(1), pages 1-24, February.
    6. Alexandre Gohin & Jean-Christophe Bureau, 2006. "Modelling the EU sugar supply to assess sectoral policy reforms," European Review of Agricultural Economics, Oxford University Press and the European Agricultural and Applied Economics Publications Foundation, vol. 33(2), pages 223-247, June.
    7. Lenka Rumánková & Luboš Smutka, 2013. "Global sugar market - the analysis of factors influencing supply and demand," Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, Mendel University Press, vol. 61(2), pages 463-471.
    8. Guido W. Imbens, 1997. "One-Step Estimators for Over-Identified Generalized Method of Moments Models," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 64(3), pages 359-383.
    9. Douglas Rivers & Quang Vuong, 2002. "Model selection tests for nonlinear dynamic models," Econometrics Journal, Royal Economic Society, vol. 5(1), pages 1-39, June.
    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. Bonnet, Céline & Requillart, Vincent, 2010. "Is The Eu Sugar Policy Reform Likely To Increase Obesity?," 115th Joint EAAE/AAEA Seminar, September 15-17, 2010, Freising-Weihenstephan, Germany 116414, European Association of Agricultural Economists.
    2. Celine Bonnet & Pierre Dubois & Sofia B. Villas Boas & Daniel Klapper, 2013. "Empirical Evidence on the Role of Nonlinear Wholesale Pricing and Vertical Restraints on Cost Pass-Through," The Review of Economics and Statistics, MIT Press, vol. 95(2), pages 500-515, May.
    3. Céline Bonnet & Pierre Dubois, 2010. "Inference on vertical contracts between manufacturers and retailers allowing for nonlinear pricing and resale price maintenance," RAND Journal of Economics, RAND Corporation, vol. 41(1), pages 139-164, March.
    4. Abbassi Abdessalem & Gervais Jean-Philippe, 2010. "Evaluating Reforms in Canadian Chicken Marketing Mechanisms Using a Linear-Quadratic Inventory Model," Journal of Agricultural & Food Industrial Organization, De Gruyter, vol. 8(1), pages 1-24, February.
    5. Bonnet, Céline & Dubois, Pierre & Simioni, Michel, 2004. "Two-Part Tariffs versus Linear Pricing between Manufacturers and Retailers: Empirical Tests on Differentiated Products Markets," IDEI Working Papers 370, Institut d'Économie Industrielle (IDEI), Toulouse, revised Apr 2006.
    6. Haucap, Justus & Heimeshoff, Ulrich & Klein, Gordon J. & Rickert, Dennis & Wey, Christian, 2021. "Vertical relations, pass-through, and market definition: Evidence from grocery retailing," International Journal of Industrial Organization, Elsevier, vol. 74(C).
    7. Bonnet, Céline & Réquillart, Vincent, 2013. "Sugar Policy Reform, Tax Policy and Price Transmission in the Soft Drink Industry," TSE Working Papers 13-373, Toulouse School of Economics (TSE).
    8. Lee, Seojeong, 2014. "Asymptotic refinements of a misspecification-robust bootstrap for generalized method of moments estimators," Journal of Econometrics, Elsevier, vol. 178(P3), pages 398-413.
    9. Mogens Fosgerau & Julien Monardo & André de Palma, 2019. "The Inverse Product Differentiation Logit Model," Working Papers hal-02183411, HAL.
    10. Levent Kutlu & Robin C. Sickles & Mike G. Tsionas & Emmanuel Mamatzakis, 2022. "Heterogeneous decision-making and market power: an application to Eurozone banks," Empirical Economics, Springer, vol. 63(6), pages 3061-3092, December.
    11. Stéphane Turolla, 2016. "Spatial Competition in the French Supermarket Industry," Annals of Economics and Statistics, GENES, issue 121-122, pages 213-259.
    12. Yangsoo Jin, 2014. "Testing Oil Refiners' Conduct in Korea: A Differentiated Product Approach," Asian Economic Journal, East Asian Economic Association, vol. 28(2), pages 161-180, June.
    13. Bonnet, Céline & Réquillart, Vincent, 2013. "Tax incidence with strategic firms in the soft drink market," Journal of Public Economics, Elsevier, vol. 106(C), pages 77-88.
    14. Martin O'Connell & Pierre Dubois & Rachel Griffith, 2022. "The Use of Scanner Data for Economics Research," Annual Review of Economics, Annual Reviews, vol. 14(1), pages 723-745, August.
    15. Molnar, Jozsef & Violi, Roberto & Zhou, Xiaolan, 2013. "Multimarket contact in Italian retail banking: Competition and welfare," International Journal of Industrial Organization, Elsevier, vol. 31(5), pages 368-381.
    16. Bonnet, Céline & Réquillart, Vincent, 2011. "Strategic Pricing and Health Price Policies," IDEI Working Papers 671, Institut d'Économie Industrielle (IDEI), Toulouse, revised Jul 2012.
    17. Matthew Backus & Christopher Conlon & Michael Sinkinson, 2021. "Common Ownership and Competition in the Ready-to-Eat Cereal Industry," NBER Working Papers 28350, National Bureau of Economic Research, Inc.
    18. Leheyda, Nina, 2008. "Market Power, Multimarket Contact and Pricing: Some Evidence from the US Automobile Market," ZEW Discussion Papers 08-118, ZEW - Leibniz Centre for European Economic Research.
    19. Junpei Komiyama & Hajime Shimao, 2018. "Cross Validation Based Model Selection via Generalized Method of Moments," Papers 1807.06993, arXiv.org.
    20. Heechul Min, 2011. "Reform in a Differentiated-Product Industry: The Case of the Korean Cigarette Manufacturing Industry," Korean Economic Review, Korean Economic Association, vol. 27, pages 57-74.

    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:spr:jknowl:v:15:y:2024:i:1:d:10.1007_s13132-023-01322-9. 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: Sonal Shukla or Springer Nature Abstracting and Indexing (email available below). General contact details of provider: http://www.springer.com .

    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.