Life-Cycle Consumption: Can Single Agent Models Get it Right?
In the quantitative macro literature, single agent models are heavily used to explain "per-adult equivalent" household data. In this paper, we study differences between consumption predictions from a single agent model and "adult equivalent" consumption predictions from a model where household size evolves deterministically over the life-cycle and affects individual preferences for consumption. Using a theoretical model we prove that, under mild conditions, these predictions are different. In particular, the single household model cannot explain patterns in life-cycle consumption profiles (the so called 'humps'), nor cross sectional inequality in consumption originating from the second model, even after controlling for household size using equivalence scales. Through a quantitative exercise, we then document that differences in predictions can be substantial: total (per-adult equivalent) consumption over the life-cycle can be up to 5% different, depending on the specific parameterization. We find a similar number for total cross sectional inequality.
|Date of creation:||Feb 2011|
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- Lazear, Edward P & Michael, Robert T, 1980. "Family Size and the Distribution of Real Per Capita Income," American Economic Review, American Economic Association, vol. 70(1), pages 91-107, March.
- Karen A. Kopecky & Richard M. H. Suen, 2009.
"Finite State Markov-Chain Approximations to Highly Persistent Processes,"
200904, University of California at Riverside, Department of Economics, revised May 2009.
- Karen Kopecky & Richard Suen, 2010. "Finite State Markov-chain Approximations to Highly Persistent Processes," Review of Economic Dynamics, Elsevier for the Society for Economic Dynamics, vol. 13(3), pages 701-714, July.
- Kopecky, Karen A. & Suen, Richard M. H., 2009. "Finite State Markov-Chain Approximations to Highly Persistent Processes," MPRA Paper 17201, University Library of Munich, Germany.
- Kopecky, Karen A. & Suen, Richard M. H., 2009. "Finite State Markov-Chain Approximations to Highly Persistent Processes," MPRA Paper 15122, University Library of Munich, Germany.
- Kjetil Storesletten & Chris I. Telmer & Amir Yaron, 2000.
"Consumption and Risk Sharing Over the Life Cycle,"
NBER Working Papers
7995, National Bureau of Economic Research, Inc.
- Storesletten, Kjetil & Telmer, Chris & Yaron, Amir, 2002. "Consumption and Risk Sharing Over the Life Cycle," Seminar Papers 702, Stockholm University, Institute for International Economic Studies.
- Kjetil Storesletten & Chris Telmer & Amir Yaron, 1997. "Consumption and risk sharing over the life cycle," GSIA Working Papers 228, Carnegie Mellon University, Tepper School of Business.
- Fatih Guvenen & Anthony Smith, 2010.
"Inferring labor income risk from economic choices: an indirect inference approach,"
450, Federal Reserve Bank of Minneapolis.
- Fatih Guvenen & Anthony Smith, 2010. "Inferring Labor Income Risk from Economic Choices: An Indirect Inference Approach," NBER Working Papers 16327, National Bureau of Economic Research, Inc.
- Tony Smith & M. Fatih Guvenen, 2007. "Inferring Labor Income Risk from Economic Choices: An Indirect Inference Approach," 2007 Meeting Papers 1024, Society for Economic Dynamics.
- Pierre-Olivier Gourinchas & Jonathan A. Parker, 2002.
"Consumption Over the Life Cycle,"
Econometric Society, vol. 70(1), pages 47-89, January.
- Gourinchas, P.O. & Parker, J.A., 1997. "Consumption Over the Life Cycle," Working papers 9722, Wisconsin Madison - Social Systems.
- Pierre-Olivier Gourinchas & Jonathan A. Parker, 1999. "Consumption Over the Life Cycle," NBER Working Papers 7271, National Bureau of Economic Research, Inc.
- Gourinchas, Pierre-Olivier & Parker, Jonathan A, 2000. "Consumption Over the Life-Cycle," CEPR Discussion Papers 2345, C.E.P.R. Discussion Papers.
- Greg Kaplan & Giovanni L. Violante, 2010.
"How Much Consumption Insurance beyond Self-Insurance?,"
American Economic Journal: Macroeconomics,
American Economic Association, vol. 2(4), pages 53-87, October.
- Greg Kaplan & Giovanni L. Violante, 2009. "How Much Consumption Insurance Beyond Self-Insurance?," NBER Working Papers 15553, National Bureau of Economic Research, Inc.
- Dirk Krueger & Fabrizio Perri, 2006. "Does Income Inequality Lead to Consumption Inequality? Evidence and Theory -super-1," Review of Economic Studies, Oxford University Press, vol. 73(1), pages 163-193.
- Orazio P. Attanasio & James Banks & Costas Meghir & Guglielmo Weber, 1995.
"Humps and Bumps in Lifetime Consumption,"
NBER Working Papers
5350, National Bureau of Economic Research, Inc.
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