Tests for explosive financial bubbles in the presence of non-stationary volatility

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Tests for explosive financial bubbles in the presence of non-stationary volatility

This paper studies the impact of permanent volatility shifts in the innovation process on the performance of the test for explosive financial bubbles based on recursive right-tailed Dickey–Fuller-type unit root tests proposed by Phillips, Wu and Yu (2011). We show that, in this situation, their supr...

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Bibliographic Details
Main Authors:	Harvey, David I., Leybourne, Stephen J., Sollis, Robert, Taylor, A.M. Robert
Format:	Article
Published:	Elsevier 2015
Subjects:	Rational bubble; Explosive autoregression; Non-stationary volatility; Right-tailed unit root testing
Online Access:	https://eprints.nottingham.ac.uk/32654/

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