Crisis Transmission In The Global Banking Network

We study the transmission of financial sector shocks across borders through international bank connections. For this purpose, we use data on long-term interbank loans among more than 6,000 banks during 1997-2012 to construct a yearly global network of interbank exposures. We estimate the effect of direct (first-degree) and indirect (second-degree) exposures to countries experiencing systemic banking crises on bank profitability and loan supply. We find that direct exposures to crisis countries squeeze banks' profit margins, thereby reducing their returns. Indirect exposures to crisis countries enhance this effect, while indirect exposures to non-crisis countries mitigate it. Furthermore, crisis exposures have real effects in that they reduce banks' supply of domestic and cross-border loans. Our results, based on a large global sample, support the notion that interconnected financial systems facilitate shock transmission.

Post-crisis dynamics show a shrinkage in the overall amount of crossborder bank lending, which has been interpreted in the literature as a retreat in financial globalization. In this paper, we argue that aggregate figures are not sufficient to support such a claim in terms of the overall structure of the global banking network. Based on a systematic approach to measuring, mapping and analyzing financial interconnectedness among countries using network theory, we show that, despite the decline in aggregate lending volumes, the structure of the network has developed increased connections in some dimensions. Some parts of the network are currently more interlinked regionally than before the crisis, and less dependent on major global lenders. In this context, at a more disaggregate level, we document the characteristics of the increasing regionalization of lending flows, the different evolution of linkages through bank affiliates and direct cross-border claims, as well as the shift in the importance of key borrower and lender nodes. These changes in the banking network have important insights in terms of policy implications since they indicate that the global banking network has evolved, but it has not undergone a generalized retrenchment in financial linkages.

Global banks played a significant role in transmitting the 2007-09 financial crisis to emerging-market (EM) economies. The authors examine adverse liquidity shocks on main developed-country banking systems and their relationships to EM across Europe, Asia, and Latin Amer., isolating loan supply from loan demand effects. Loan supply in EM across Europe, Asia, and Latin Amer. was affected significantly through three separate channels: (1) a contraction in direct, cross-border lending by foreign banks; (2) a contraction in local lending by foreign banks¿ affiliates in EM; and (3) a contraction in loan supply by domestic banks, resulting from the funding shock to their balance sheets induced by the decline in interbank, cross-border lending. Charts and tables.

This paper analyses the nature of the increasing regionalization process in global banking. Despite the large decline in aggregate cross-border banking lending volumes, some parts of the global banking network are currently more interlinked regionally than before the Global Financial Crisis. After developing a simple theoretical model capturing banks' internationalization decisions, our estimation shows that this regionalization trend is present even after controlling for traditional gravitational variables (e.g. distance, language, legal system, etc.), especially among lenders in EMs and non-core banking systems, such as Australia, Canada, Hong Kong, and Singapore. Moreover, this regionalization trend was present before the GFC, but it has increased since then, and it seems to be associated with regulatory variables and the opportunities created by the retrenchment of several European lenders.

The current report finds that, despite an improvement in economic prospects in some key advanced economies, new challenges to global financial stability have arisen. The global financial system is being buffeted by a series of changes, including lower oil prices and, in some cases, diverging growth patterns and monetary policies. Expectations for rising U.S. policy rates sparked a significant appreciation of the U.S. dollar, while long term bond yields in many advanced economies have decreased—and have turned negative for almost a third of euro area sovereign bonds—on disinflation concerns and the prospect of continued monetary accommodation. Emerging markets are caught in these global cross currents, with some oil exporters and other facing new stability challenges, while others have gained more policy space as a result of lower fuel prices and reduced inflationary pressures. The report also examines changes in international banking since the global financial crisis and finds that these changes are likely to promote more stable bank lending in host countries. Finally, the report finds that the asset management industry needs to strengthen its oversight framework to address financial stability risks from incentive problems between end-investors and portfolio managers and the risk of runs due to liquidity mismatches.

Although cross-border bank lending has fallen sharply since the crisis, extending our bank ownership database from 1995-2009 up to 2013 shows only limited retrenchment in foreign bank presence. While banks from OECD countries reduced their foreign presence (but still represent 89% of foreign bank assets), those from emerging markets and developing countries expanded abroad and doubled their presence. Especially advanced countries hit by a systemic crisis reduced their presence abroad, with far flung and relatively small investments more likely to be sold. Poorer and slower growing countries host fewer banks today, while large investments less likely expanded. Conversely, faster host countries’ growth and closeness to potential investors meant more entry. Lending by foreign banks locally grew more than cross-border bank claims did for the same home-host country combination, and each was driven by different factors. Altogether, our evidence shows that global banking is not becoming more fragmented, but rather is going through some important structural transformations with a greater variety of players and a more regional focus.

This paper studies the interconnectedness of the global financial system and its susceptibility to shocks. A novel multilayer network framework is applied to link debt and equity exposures across countries. Use of this approach—that examines simultaneously multiple channels of transmission and their important higher order effects—shows that ignoring the heterogeneity of financial exposures, and simply aggregating all claims, as often done in other studies, can underestimate the extent and effects of financial contagion.The structure of the global financial network has changed since the global financial crisis, impacted by European bank’s deleveraging and higher corporate debt issuance. Still, we find that the structure of the system and contagion remain similar in that network is highly susceptible to shocks from central countries and those with large financial systems (e.g., the USA and the UK). While, individual European countries (excluding the UK) have relatively low impact on shock propagation, the network is highly susceptible to the shocks from the entire euro area. Another important development is the rising role of the Asian countries and the noticeable increase in network susceptibility to shocks from China and Hong Kong SAR economies.

The impact of globalization of financial markets is a highly debated topic, particularly in recent months when the issue of globalization and contagion of financial distress has become a focus of intense policy debate. The papers in this volume provide an up-to-date overview of the key issues in this debate. While most of the contributions were prepared after the initial outbreak of the current global turmoil and financial crisis, they identify the relative strengths of the risk diversification and risk transmission processes and examine the empirical evidence to date. The book considers the relative roles of banks, nonbank financial institutions and capital markets in both risk diversification and risk transmission. It then evaluates the current status of crisis resolution in a global context, and speculates where to go from here in terms of understanding, resolution, prevention and public policy.