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Private versus public consumption within groups: testing the nature of goods from aggregate data

  • Laurens Cherchye


  • Bram De Rock


  • Vincenzo Platino


We study the testability implications of public versus private consumption in collective models of group consumption. The distinguishing feature of our approach is that we start from a revealed preference characterization of collectively rational behavior. Remarkably, we find that assumptions regarding the public or private nature of specific goods do have testability implications, even if one only observes the aggregate group consumption. In fact, these testability implications apply as soon as the analysis includes three goods and four observations. This stands in sharp contrast with existing results that start from a differential characterization of collectively rational behavior. Copyright Springer-Verlag Berlin Heidelberg 2013

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Article provided by Springer in its journal Economic Theory.

Volume (Year): 54 (2013)
Issue (Month): 3 (November)
Pages: 485-500

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Handle: RePEc:spr:joecth:v:54:y:2013:i:3:p:485-500
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  3. Cherchye, L.J.H. & de Rock, B. & Vermeulen, F.M.P., 2008. "An Afriat Theorem for the Collective Model of Household Consumption," Discussion Paper 2008-72, Tilburg University, Center for Economic Research.
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