Please cite this article in press as: Ahrend, R., Goujard, A., Are all forms of financial integration equally risky? Asset price contagion during the
global financial crisis. J. Financial Stability (2014), http://dx.doi.org/10.1016/j.jfs.2013.12.005
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Journal of Financial Stability
journal homepage: www.elsevier.com/locate/jfstabil
Are all forms of financial integration equally risky? Asset price
contagion during the global financial crisis
Rudiger Ahrend, Antoine Goujard
∗
OECD Economics Department, 2 rue André Pascal, 75016 Paris, France
a r t i c l e i n f o
Article history:
Received 17 April 2013
Received in revised form 21 October 2013
Accepted 20 December 2013
Available online xxx
JEL classification:
E44
F36
F44
G15
Keywords:
Asset price co-movements
Financial spillovers
Trade spillovers
External debt
Foreign direct investments
a b s t r a c t
Using the 2008–2009 global financial crisis, this paper examines the role of different forms of international
financial integration for asset price contagion in crisis times. The analysis uses bilateral financial and
trade linkages and daily data on equity and bond prices for a sample of 46 countries between 2002
and 2011. Bilateral debt integration and common bank lenders are found to have transmitted financial
turmoil through equity and bond markets at the height of the crisis. During this period, real trade linkages
also increased equity price co-movements. By contrast, no robust evidence is found that equity or FDI
integration increased asset price co-movements during the crisis.
© 2013 Elsevier B.V. All rights reserved.
1. Introduction
The global financial crisis has highlighted that financial turmoil
can spread rapidly, as became visible e.g. in synchronised, large
asset price movements across countries (Bunda et al., 2010; Frank
and Hesse, 2009). Apart from an increasing correlation of economic
fundamentals during financial crises, correlations in asset prices
could also increase because of contagion. The strength of contagion,
in turn, may depend on financial linkages between countries, and
the form through which such financial integration occurs (Didier
et al., 2008). This paper examines whether the depth and type of
cross-border financial integration may lead to asset price conta-
gion, based on a difference-in-differences identification strategy
and looking at asset price co-movements prior to and during the
2007–2009 global financial crisis.
Contagion can be expected to lead to an increase in co-
movement of returns for certain country pairs, but not others,
and our empirical strategy aims at disentangling the role of differ-
ent forms of contagion during the global financial crisis. Financial
∗
Corresponding author. Tel.: +33 628306452.
E-mail addresses: Rudiger.ahrend@oecd.org (R. Ahrend),
Antoine.goujard@gmail.com (A. Goujard).
contagion is measured as the transmission of financial market
movements beyond the co-movements that would occur in “tran-
quil” times (Forbes and Rigobon, 2002). For instance, contagion
through bilateral debt integration is inferred if asset price co-
movements increase more during the crisis between country pairs
that hold large shares of their external debt, relative to country
pairs whose external debt is mainly held by third-party countries.
Similarly, when the banking systems of two countries have a com-
mon lender, there is no reason for correlation in returns between
the two debtor countries in normal times. However, during the cri-
sis, capital and liquidity shocks in international banking centres
may have generated large co-movement among debtor countries.
A large body of both theoretical and empirical work, reviewed
e.g. in Kaminsky et al. (2003), explores how financial turmoil is
transmitted. Beyond the possibility that the spreading of financial
turmoil may be caused by common shocks, the literature has iden-
tified real trade and financial linkages as the main mechanisms
of bilateral crisis transmission across countries. Both linkages can
work directly or indirectly.
1
Direct trade effects arise, for example,
1
Financial and trade channels may not operate independently. For example,
the co-movements of equity stocks may depend both on export prospects and
firms’ dependence on international trade finance. Focusing on the United States,
1572-3089/$ – see front matter © 2013 Elsevier B.V. All rights reserved.
http://dx.doi.org/10.1016/j.jfs.2013.12.005