Equilibrium Selection in Pure Bubble Models by Dividend Injection

Fuente: arXiv
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Main Authors: Hirano, Tomohiro, Toda, Alexis Akira
Format: Preprint
Published: 2023
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author Hirano, Tomohiro
Toda, Alexis Akira
author_facet Hirano, Tomohiro
Toda, Alexis Akira
contents Rational pure bubble models feature multiple (and often a continuum of) equilibria, which makes model predictions and policy analyses non-robust. We show that when the interest rate in the fundamental equilibrium is below the economic growth rate ($R<G$), a bubbly equilibrium with $R=G$ exists. By injecting dividends to the bubble asset that grow slower than the aggregate economy, we can eliminate the fundamental steady state and resolve equilibrium indeterminacy. We show the general applicability of dividend injection through examples in overlapping generations and infinite-horizon models with or without production or financial frictions.
format Preprint
id arxiv_https___arxiv_org_abs_2303_05636
institution arXiv
publishDate 2023
record_format arxiv
spellingShingle Equilibrium Selection in Pure Bubble Models by Dividend Injection
Hirano, Tomohiro
Toda, Alexis Akira
Theoretical Economics
Rational pure bubble models feature multiple (and often a continuum of) equilibria, which makes model predictions and policy analyses non-robust. We show that when the interest rate in the fundamental equilibrium is below the economic growth rate ($R<G$), a bubbly equilibrium with $R=G$ exists. By injecting dividends to the bubble asset that grow slower than the aggregate economy, we can eliminate the fundamental steady state and resolve equilibrium indeterminacy. We show the general applicability of dividend injection through examples in overlapping generations and infinite-horizon models with or without production or financial frictions.
title Equilibrium Selection in Pure Bubble Models by Dividend Injection
topic Theoretical Economics
url https://arxiv.org/abs/2303.05636