IDEAS home Printed from https://ideas.repec.org/p/bar/bedcje/2008191.html
   My bibliography  Save this paper

Heterogeneous products and tests for an appropriate aggregation level considering different qualities: evidence from fresh hake at Barcelonas wholesale market

Author

Listed:
  • Jordi Guillen
  • Ramon Franquesa

    (Universitat de Barcelona)

Abstract

This paper stresses the importance of considering an appropriate aggregation level for databases and demand analyses, as an inappropriate level may lead to biased estimates. This is illustrated by an analysis of different fresh hake products from Mercabarna, Barcelonas wholesale market. The literature on seafood demand regards hake as a single product species. Nevertheless, in the Spanish market, many types of fish, ranging from inferior to luxury goods, are marketed as hake. Our results were in accordance with empirical observations, and suggest the need for analysis at a greater depth than the species level. Thus, this questions the results of previous demand studies and most databases, which have not taken the appropriate product aggregation level into account.

Suggested Citation

  • Jordi Guillen & Ramon Franquesa, 2008. "Heterogeneous products and tests for an appropriate aggregation level considering different qualities: evidence from fresh hake at Barcelonas wholesale market," Working Papers in Economics 191, Universitat de Barcelona. Espai de Recerca en Economia.
  • Handle: RePEc:bar:bedcje:2008191
    as

    Download full text from publisher

    File URL: http://www.ere.ub.es/dtreball/E08191.rdf/at_download/file
    Download Restriction: no

    More about this item

    JEL classification:

    • Q22 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Renewable Resources and Conservation - - - Fishery
    • Q11 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Agriculture - - - Aggregate Supply and Demand Analysis; Prices
    • C43 - Mathematical and Quantitative Methods - - Econometric and Statistical Methods: Special Topics - - - Index Numbers and Aggregation

    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:bar:bedcje:2008191. 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: (Espai de Recerca en Economia). General contact details of provider: http://edirc.repec.org/data/feubaes.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.