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Bubbly Markov equilibria

Martin Barbie () and Marten Hillebrand ()
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Martin Barbie: University of Cologne

Economic Theory, 2018, vol. 66, issue 3, 627-679

Abstract: Abstract Bubbly Markov equilibria (BME) are recursive equilibria on the natural state space which admit a non-trivial bubble. The present paper studies the existence and properties of BME in a general class of overlapping generations economies with capital accumulation and stochastic production shocks. Using monotone methods, we develop a general approach to construct Markov equilibria and provide necessary and sufficient conditions for these equilibria to be bubbly. Our main result shows that a BME exists whenever the bubbleless equilibrium is Pareto inefficient due to either overaccumulation of capital or inefficient risk sharing between generations.

Keywords: Asset bubbles; Stochastic OLG; Production; Markov equilibria; Pareto optimality (search for similar items in EconPapers)
JEL-codes: C62 D51 E32 (search for similar items in EconPapers)
Date: 2018
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