The unbearable lightness of equilibria in a low interest rate environment

Guido Ascari and Sophocles Mavroeidis

Papers from arXiv.org

Abstract: Structural models with no solution are incoherent, and those with multiple solutions are incomplete. We show that models with occasionally binding constraints are not generically coherent. Coherency requires restrictions on the parameters or on the support of the distribution of the shocks. In presence of multiple shocks, the support restrictions cannot be independent from each other, so the assumption of orthogonality of structural shocks is incompatible with coherency. Models whose coherency is based on support restrictions are generically incomplete, admitting a very large number of minimum state variable solutions.

Date: 2020-06, Revised 2021-12
New Economics Papers: this item is included in nep-dge
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Related works:
Journal Article: The unbearable lightness of equilibria in a low interest rate environment (2022)
Working Paper: The unbearable lightness of equilibria in a low interest rate environment (2021)
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Persistent link: https://EconPapers.repec.org/RePEc:arx:papers:2006.12966

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