Predicting Multi-Scale Positive and Negative Stock Market Bubbles in a Panel of G7 Countries: The Role of Oil Price Uncertainty

Renee van Eyden (), Rangan Gupta, Xin Sheng () and Joshua Nielsen ()
Additional contact information
Xin Sheng: Lord Ashcroft International Business School, Anglia Ruskin University, Chelmsford, United Kingdom
Joshua Nielsen: Boulder Investment Technologies, LLC, 1942 Broadway Suite 314C, Boulder, CO, 80302, USA

No 202332, Working Papers from University of Pretoria, Department of Economics

Abstract: In this paper, as a first step, we use the Multi-Scale Log-Periodic Power Law Singularity Confidence Indicator (MS-LPPLS-CI) approach to detect both positive and negative bubbles in the short-, medium- and long-term in the stock markets of the G7 countries. While detecting major crashes and booms in the seven stock markets over the monthly period of 1973:02 to 2020:05, we also observe similar timing of strong (positive and negative) LPPLS-CIs across the G7, suggesting synchronized boom-bust cycles. Given this, in the second step, we apply dynamic heterogeneous coefficients panel databased regressions to analyze the predictive impact of a model-free robust metric of oil price uncertainty on the bubbles indicators. After controlling for the impacts of output growth, inflation, and monetary policy, we find that oil price uncertainty predicts a decrease in all the time scales and countries of the positive bubbles and increases strongly the medium term for five countries (and weakly the short-term) negative LPPLS-CIs. The aggregate findings continue to hold with the inclusion of investor sentiment indicators. Our results have important implications for both investors and policymakers, as the higher (lower) oil price uncertainty can lead to a crash (recovery) in a bullish (bearish) market.

Keywords: Multi-Scale Bubbles; Oil Price Uncertainty; Panel Data Regressions; G7 Stock Markets (search for similar items in EconPapers)
JEL-codes: C22 C32 C33 G15 Q02 (search for similar items in EconPapers)
Pages: 35 pages
Date: 2023-10
New Economics Papers: this item is included in nep-ene and nep-fmk
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Journal Article: Predicting Multi-Scale Positive and Negative Stock Market Bubbles in a Panel of G7 Countries: The Role of Oil Price Uncertainty (2025)
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