Abstract

http://ssrn.com/abstract=1998236
 
 

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Signaling Asset Price Bubbles with Time-Series Methods


Katja Taipalus


Bank of Finland - Financial Stability and Statistics

February 2, 2012

Bank of Finland Research Discussion Paper No. 7/2012

Abstract:     
This paper provides an early warning indicator for bubbles in financial markets. The indicator is based on traditional unit root tests, more precisely on the augmented Dickey-Fuller test and may be used in a repeated manner with rolling samples. The performance of the indicator is tested extensively via Monte Carlo simulations and comparisons of the results with the most powerful standard (stability) tests. The new indicator seems to be more robust and to have more power than the standard tests. In empirical application to US stock market data for 1871–2010, the new indicator signals most of the consensus bubbles and gives warning signals well ahead of the crash, in most cases as early as 12 months ahead. The indicator also signals most of the 'negative bubbles' before their turning points.

Number of Pages in PDF File: 50

Keywords: asset prices, financial crises, bubbles, indicator, unit-root

JEL Classification: G12, C15, G01

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Date posted: February 11, 2012  

Suggested Citation

Taipalus, Katja, Signaling Asset Price Bubbles with Time-Series Methods (February 2, 2012). Bank of Finland Research Discussion Paper No. 7/2012. Available at SSRN: http://ssrn.com/abstract=1998236 or http://dx.doi.org/10.2139/ssrn.1998236

Contact Information

Katja Taipalus (Contact Author)
Bank of Finland - Financial Stability and Statistics ( email )
Finland
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