Income Effects and Indeterminacy in a Calibrated One-Sector Growth Model

Nir Jaimovich

No 07-012, Discussion Papers from Stanford Institute for Economic Policy Research

Abstract: This paper analyzes how the indeterminacy of competitive equilibrium in one-sector growth models depends on the magnitude of the households' income effect on the demand for leisure. The paper first establishes that the presence of income effect is necessary for the existence of an indeterminate equilibrium. I incorporate into this analysis the Jaimovich and Rebelo (2006) preferences that nest the KPR and GHH utility functions and span the entire range of income effect that exists between the two. Having identified these regions of indeterminacy, I find a lower and an upper bound for the magnitude of income effect that leads to indeterminacy. Moreover, by allowing for variation in the degree of income effect, I find that indeterminacy can occur for levels of aggregate-returns-to-scale that are well within recent empirical estimates. Finally, for these regions of indeterminacy, I simulate the model driven solely by sunspot shocks. I find that the second-moment properties of this model are generally consistent with the U.S. data at the business cycle frequency.

Keywords: Indeterminate Equilibria; Utility Function; Sunspot Shocks; Business Cycles (search for similar items in EconPapers)
JEL-codes: D12 E32 (search for similar items in EconPapers)
Date: 2005-07, Revised 2007-03
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Journal Article: Income effects and indeterminacy in a calibrated one-sector growth model (2008)
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