Empirical Economics

, Volume 22, Issue 3, pp 409–429 | Cite as

Household characteristics and consumption behaviour: A nonparametric approach

  • Miguel A. Delgado
  • Daniel Miles


In this paper we apply nonparametric methods in order to discuss some empirical aspects of household consumption behaviour. First, we study the differences in the consumption behaviour between household types. We find that, except for food, there are no clear significant differences. Secondly, we derive the functional form for the food Engel curve, using specification tests consistent in the direction of nonparametric alternatives. Finally, we use this specification to discuss the misleading conclusions that could be reached from a mechanic interpretation of the rejection of Hausman's test, when applied to test the exogeneity of expenditure. The data is obtained from the Spanish Expenditure Survey 1980–81 and 1990–91.

Key Words

Engel curves Household characteristics Nonparametric Estimation Consistent Specification Tests Expenditure Endogeneity 

JEL Classification System-Numbers

C14 C21 C52 D12 


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Copyright information

© Physica-Verlag 1997

Authors and Affiliations

  • Miguel A. Delgado
    • 1
  • Daniel Miles
    • 1
  1. 1.Universidad Carlos III de MadridSpain

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