Constrained efficiency in the neoclassical growth model with uninsurable idiosyncratic shocks
Julio Dávila,
Jay Hong,
Per Krusell and
José-Victor Rios Rull ()
Additional contact information
José-Victor Rios Rull: University of Pennsylvania et CAERP
Authors registered in the RePEc Author Service: José-Víctor Ríos-Rull
Cahiers de la Maison des Sciences Economiques from Université Panthéon-Sorbonne (Paris 1)
Abstract:
We investigate the welfare properties of the one-sector neoclassic growth model with uninsurable idiosyncratic shocks. We focus on the constrained efficiency notion of the general equilibrium literature, and we demonstrate constrained inefficiency for our model. We provide a characterization of constrained efficiency that uses the first-order condition of a constrained planner's problem that points to the margins of relevance for whether capital is too high or too low: the income composition of the (consumption) poor. We calibrate our benchmark model parameters governing idiosyncratic risks to the U.S. earnings and wealth distribution, and for this distribution the income of the poor is mainly composed of labor earnings. We compute the constrained-efficient allocations -including transition dynamics- for our model economy, and we conclude that the long-run capital stock in a laissez faire world is not only too low, but much too low. We also show that one can find parameterizations with different qualitative features: in one case, the steady-state capital stock is too high, and in another case no steady state exists
Keywords: Constrained efficiency; idiosyncratic risk; neoclassical growth model (search for similar items in EconPapers)
JEL-codes: O41 (search for similar items in EconPapers)
Pages: 52 pages
Date: 2005-07
New Economics Papers: this item is included in nep-dge
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (83)
Published in Econometrica, Econometric Society, 2012, 80 (6), pp.2431-2467
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https://doi.org/10.3982/ECTA5989
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Related works:
Journal Article: Constrained Efficiency in the Neoclassical Growth Model With Uninsurable Idiosyncratic Shocks (2012) 
Working Paper: Constrained efficiency in the neoclassical growth model with uninsurable idiosyncratic shocks (2012)
Working Paper: Constrainted efficiency in the neoclassical growth model with uninsurable idiosyncratic skocks (2012)
Working Paper: Constrained Efficiency in the Neoclassical Growth Model With Uninsurable Idiosyncratic Shocks (2012)
Working Paper: Constrainted efficiency in the neoclassical growth model with uninsurable idiosyncratic skocks (2012)
Working Paper: Constrained Efficiency in the Neoclassical Growth Model With Uninsurable Idiosyncratic Shocks (2012)
Working Paper: Constrainted efficiency in the neoclassical growth model with uninsurable idiosyncratic skocks (2012)
Working Paper: Constrained efficiency in the neoclassical growth model with uninsurable idiosyncratic shocks (2005) 
Working Paper: Constrained efficiency in the neoclassical growth model with uninsurable idiosyncratic shocks (2005) 
Working Paper: Constrained efficiency in the neoclassical growth model with uninsurable idiosyncratic shocks (2005) 
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