Spotting Bubbles: A Two-Pillar Framework for Policy Makers

In the aftermath of the global fi nancial crisis, the issue of how best to identify speculative bubbles remains in fl ux. This owes to the diffi culty of disentangling irrational investor exuberance from the rational response to lower risk, based on price behavior alone. In response, I introduce a...

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Main Author: Bradley A. Jones
Format: Article
Language:English
Published: University of Warsaw 2016-07-01
Series:Journal of Banking and Financial Economics
Subjects:
Online Access:https://press.wz.uw.edu.pl/cgi/viewcontent.cgi?article=1075&context=jbfe
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author Bradley A. Jones
author_facet Bradley A. Jones
author_sort Bradley A. Jones
collection DOAJ
description In the aftermath of the global fi nancial crisis, the issue of how best to identify speculative bubbles remains in fl ux. This owes to the diffi culty of disentangling irrational investor exuberance from the rational response to lower risk, based on price behavior alone. In response, I introduce a twopillar (price and quantity) approach for fi nancial market surveillance. While asset pricing models comprise a valuable component of the surveillance toolkit, risk taking behavior, and fi nancial vulnerabilities more generally, can also be refl ected in subtler, non-price terms. Though policy makers will always encounter uncertainty when attempting to measure imbalances in fi nancial markets, ‘perfect should not be the enemy of the good.’ In this spirit, the framework in this paper seems to capture some of the stylized facts of asset booms and busts, and thus could offer policy makers a practical guide as to when to consider leaning against the wind.
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spelling doaj-art-3b064fdec9f24a3a990f10d657ff63602025-01-02T23:16:33ZengUniversity of WarsawJournal of Banking and Financial Economics2353-68452016-07-0120162(6)9011210.7172/2353-6845.jbfe.2016.2.5Spotting Bubbles: A Two-Pillar Framework for Policy MakersBradley A. Jones0International Monetary Fund, United States of AmericaIn the aftermath of the global fi nancial crisis, the issue of how best to identify speculative bubbles remains in fl ux. This owes to the diffi culty of disentangling irrational investor exuberance from the rational response to lower risk, based on price behavior alone. In response, I introduce a twopillar (price and quantity) approach for fi nancial market surveillance. While asset pricing models comprise a valuable component of the surveillance toolkit, risk taking behavior, and fi nancial vulnerabilities more generally, can also be refl ected in subtler, non-price terms. Though policy makers will always encounter uncertainty when attempting to measure imbalances in fi nancial markets, ‘perfect should not be the enemy of the good.’ In this spirit, the framework in this paper seems to capture some of the stylized facts of asset booms and busts, and thus could offer policy makers a practical guide as to when to consider leaning against the wind.https://press.wz.uw.edu.pl/cgi/viewcontent.cgi?article=1075&context=jbfeasset bubblesasset pricingmarket effi ciencymacroprudential policy
spellingShingle Bradley A. Jones
Spotting Bubbles: A Two-Pillar Framework for Policy Makers
Journal of Banking and Financial Economics
asset bubbles
asset pricing
market effi ciency
macroprudential policy
title Spotting Bubbles: A Two-Pillar Framework for Policy Makers
title_full Spotting Bubbles: A Two-Pillar Framework for Policy Makers
title_fullStr Spotting Bubbles: A Two-Pillar Framework for Policy Makers
title_full_unstemmed Spotting Bubbles: A Two-Pillar Framework for Policy Makers
title_short Spotting Bubbles: A Two-Pillar Framework for Policy Makers
title_sort spotting bubbles a two pillar framework for policy makers
topic asset bubbles
asset pricing
market effi ciency
macroprudential policy
url https://press.wz.uw.edu.pl/cgi/viewcontent.cgi?article=1075&context=jbfe
work_keys_str_mv AT bradleyajones spottingbubblesatwopillarframeworkforpolicymakers