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An exact consumption rule with liquidity constraints and stochastic income

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Author Info
Travaglini Giuseppe () (Università di Urbino Carlo Bo, Facoltà di Economia)
Abstract

This model provides a closed form solution to the problem of liquidity constrained consumption with stochastic income. To keep the model tractable we employ a quadratic utility function. Income follows a geometric Brownian motion. The analytical solution exhibits a smooth, non linear, relation between consumption and income along the optimizing path even when the constraint binds. This outcome confirms the assertions in the literature that even liquidity constrained consumers may satisfy the standard Euler equation. But, in our model this result emerges from the analytical solution.

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File URL: http://economicsbulletin.vanderbilt.edu/2008/volume5/EB-08E20001A.pdf
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Article provided by Economics Bulletin in its journal Economics Bulletin.

Volume (Year): 5 (2008)
Issue (Month): 6 ()
Pages: 1-9
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Handle: RePEc:ebl:ecbull:v:5:y:2008:i:6:p:1-9

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Related research
Keywords: Optimal control Stochastic income Liquidity constraints Consumption

Find related papers by JEL classification:
E2 - Macroeconomics and Monetary Economics - - Macroeconomics: Consumption, Saving, Production, Employment, and Investment
C6 - Mathematical and Quantitative Methods - - Mathematical Methods and Programming

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  1. Saltari, Enrico & Travaglini, Giuseppe, 2006. "The effects of future financing constraints on capital accumulation: Some new results on the constrained investment problem," Research in Economics, Elsevier, vol. 60(2), pages 85-96, June. [Downloadable!] (restricted)
  2. Zeldes, Stephen P, 1989. "Optimal Consumption with Stochastic Income: Deviations from Certainty Equivalence," The Quarterly Journal of Economics, MIT Press, vol. 104(2), pages 275-98, May. [Downloadable!] (restricted)
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  3. Christopher D Carroll & Miles S Kimball, 2001. "Liquidity Constraints and Precautionary Saving," Economics Working Paper Archive 455, The Johns Hopkins University,Department of Economics. [Downloadable!]
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  4. Zeldes, Stephen P, 1989. "Consumption and Liquidity Constraints: An Empirical Investigation," Journal of Political Economy, University of Chicago Press, vol. 97(2), pages 305-46, April. [Downloadable!] (restricted)
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  5. Deaton, Angus, 1991. "Saving and Liquidity Constraints," Econometrica, Econometric Society, vol. 59(5), pages 1221-48, September. [Downloadable!] (restricted)
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  6. Seater, John J., 1997. "An optimal control solution to the liquidity constraint problem," Economics Letters, Elsevier, vol. 54(2), pages 127-134, February. [Downloadable!] (restricted)
  7. Park, Myung-Ho, 2006. "An analytical solution to the inverse consumption function with liquidity constraints," Economics Letters, Elsevier, vol. 92(3), pages 389-394, September. [Downloadable!] (restricted)
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This page was last updated on 2008-8-8.


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