IDEAS home Printed from https://ideas.repec.org/p/ags/aaea11/103859.html
   My bibliography  Save this paper

Implementing Rural-Urban Disaggregated Food Demand in a Partial Equilibrium Model

Author

Listed:
  • Mason-D'Croz, Daniel
  • Magnan, Nicholas
  • Msangi, Siwa
  • Leroy, Laetitia

Abstract

Global general and partial equilibrium models focused on the agricultural sector can help policy makers do ex-ante analysis by providing a variety of macro-level outcomes, such as changes in flows of international trade, and changes in the supply, demand, and prices of globally traded commodities. IFPRI’s IMPACT model (International Model for Policy Analysis of Agricultural Commodities and Trade) model is one such model. Since its inception nearly 20 years ago the model has evolved to inform increasingly complex and nuanced policy issues, such as the explicit modeling of water use and the productive response of agriculture to climate change. However, on the demand side it has remained a fairly blunt instrument. One oft mentioned shortcoming of global food policy models such as IMPACT model is that they treat national populations as a single composite consumer. As (relatively) wealthier urban and poorer rural populations exhibit different demand characteristics, have different base levels of food consumption, and have different levels of wealth, assigning a single representative consumer for an entire country could result in misleading results regarding both global prices and consumption and the food security of the poorer segments of the population. In this poster we present a global partial equilibrium food security model with disaggregated demand. Working from the IMPACT model, we divided national populations into their urban and rural components. Studies have shown that rural and urban consumers, as well as poor and rich consumers, have structurally different food demands. Accordingly, we assign different demand elasticities (price and income), different base consumption (at the commodity level), and different incomes to sub-populations populations within each country. We have completed an extensive study of the food demand literature, using the findings to develop parameters to represent the structural differences in urban and rural food demand (see right for explanation of this process). We use rural/urban population and income data and projections from the UN to complete the disaggregation.

Suggested Citation

  • Mason-D'Croz, Daniel & Magnan, Nicholas & Msangi, Siwa & Leroy, Laetitia, 2011. "Implementing Rural-Urban Disaggregated Food Demand in a Partial Equilibrium Model," 2011 Annual Meeting, July 24-26, 2011, Pittsburgh, Pennsylvania 103859, Agricultural and Applied Economics Association.
  • Handle: RePEc:ags:aaea11:103859
    DOI: 10.22004/ag.econ.103859
    as

    Download full text from publisher

    File URL: https://ageconsearch.umn.edu/record/103859/files/Daniel%20Mason-D_Croz.pdf
    Download Restriction: no
    ---><---

    More about this item

    Keywords

    Agricultural and Food Policy; Demand and Price Analysis; Food Security and Poverty;
    All these keywords.

    NEP fields

    This paper has been announced in the following NEP Reports:

    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:ags:aaea11:103859. See general information about how to correct material in RePEc.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (AgEcon Search). General contact details of provider: https://edirc.repec.org/data/aaeaaea.html .

    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.

    We have no references for this item. You can help adding them by using 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.

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

    IDEAS is a RePEc service hosted by the Research Division of the Federal Reserve Bank of St. Louis . RePEc uses bibliographic data supplied by the respective publishers.