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Collective and Unitary Models: a Clarification

  • Martin Browning

    (Institute of Economics, University of Copenhagen)

  • Pierre-André Chiappori

    (Department of Economics, University of Chicago)

  • Valérie Lechene

    (Wadham College, Oxford University)

In this note we identify and clarify a confusion that has arisen in the literature about the exact relationship between unitary and collective models and what enters the Pareto weight and the sharing function. We suggest that we should denote as `unitary` any model that leads to outcomes that satisfy the Slutsky conditions whether or not these outcomes depend on distribution factors. In particular, income pooling is neither necessary nor sufficient for a unitary model. We also show that the presence of prices or total expenditure in the sharing rule cannot be used as a test for a unitary model.

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Paper provided by University of Copenhagen. Department of Economics. Centre for Applied Microeconometrics in its series CAM Working Papers with number 2004-15.

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Length: 13 pages
Date of creation: May 2004
Date of revision:
Handle: RePEc:kud:kuieca:2004_15
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  1. Kaushik Basu, 2004. "Gender and Say A Model of Household Behavior with Endogenously-determined Balance of Power," Harvard Institute of Economic Research Working Papers 2054, Harvard - Institute of Economic Research.
  2. Shelly Lundberg & Robert A. Pollak, 2001. "Efficiency in Marriage," NBER Working Papers 8642, National Bureau of Economic Research, Inc.
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  5. Becker, Gary S, 1973. "A Theory of Marriage: Part I," Journal of Political Economy, University of Chicago Press, vol. 81(4), pages 813-46, July-Aug..
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  7. Olivier Donni, 2004. "A Simple Model of Collective Consumption," DELTA Working Papers 2004-05, DELTA (Ecole normale supérieure).
  8. Chen, Zhiqi & Woolley, Frances, 2001. "A Cournot-Nash Model of Family Decision Making," Economic Journal, Royal Economic Society, vol. 111(474), pages 722-48, October.
  9. Lundberg, S. & Pollak, R.A., 1991. "Separate Spheres Bargaining and the Marriage Market," Working Papers 91-08, University of Washington, Department of Economics.
  10. Chiappori, P.A., 1989. "Collective Labour Supply and Welfare," DELTA Working Papers 89-07, DELTA (Ecole normale supérieure).
  11. Browning, Martin & Francois Bourguignon & Pierre-Andre Chiappori & Valerie Lechene, 1994. "Income and Outcomes: A Structural Model of Intrahousehold Allocation," Journal of Political Economy, University of Chicago Press, vol. 102(6), pages 1067-96, December.
  12. Browning, Martin, 2000. " The Saving Behaviour of a Two-Person Household," Scandinavian Journal of Economics, Wiley Blackwell, vol. 102(2), pages 235-51, June.
  13. Maurizio Mazzocco, 2007. "Household Intertemporal Behaviour: A Collective Characterization and a Test of Commitment," Review of Economic Studies, Oxford University Press, vol. 74(3), pages 857-895.
  14. François Bourguignon, 1984. "Rationalité individuelle ou rationalité stratégique : le cas de l'offre familiale de travail," Revue Économique, Programme National Persée, vol. 35(1), pages 147-162.
  15. Grossbard-Shechtman, Shoshana Amyra, 1984. "A Theory of Allocation of Time in Markets for Labour and Marriage," Economic Journal, Royal Economic Society, vol. 94(376), pages 863-82, December.
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  17. Brown, Bryan W & Walker, Mary Beth, 1989. "The Random Utility Hypothesis and Inference in Demand Systems," Econometrica, Econometric Society, vol. 57(4), pages 815-29, July.
  18. Donald J. Brown & Rosa L. Matzkin, 1998. "Estimation of Nonparametric Functions in Simultaneous Equations Models, with an Application to Consumer Demand," Cowles Foundation Discussion Papers 1175, Cowles Foundation for Research in Economics, Yale University.
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