Network analysis reveals euro area financial links, bank centrality
A new European Central Bank working paper uses network analysis to map financial interconnections in the euro area economies. It finds that banks are central in most countries, with Cyprus, Ireland, Luxembourg, and Malta as notable exceptions where other financial institutions dominate.
Banks at the core, four outliers
The paper constructs networks of cross-sectoral financial exposures for the twenty euro area countries, utilizing who-to-whom data from quarterly sectoral accounts for the last quarter of 2024.
Applying centrality metrics, the study reveals that banks consistently occupy the core of national financial networks across most euro area economies.
These banks exhibit extensive interconnections with both other financial sectors and the real economy, yet maintain limited exposures to and from the rest of the world, underscoring their domestic service provision.
However, Cyprus, Ireland, Luxembourg, and Malta present distinct exceptions.
In these four countries, investment funds and other financial institutions form the network's core, characterized by massive cross-border exposures and limited links to their domestic real economies.
This unique structure suggests these institutions primarily channel foreign savings into foreign investments, diverging significantly from the banking-centric models observed elsewhere in the euro area.
Mapping contagion pathways
The findings provide several policy insights for macroprudential authorities.
The confirmed centrality of banks in most euro area countries reinforces the necessity of a robust and comprehensive prudential regime for them.
The concentration of non-bank financial activities in the four outlier countries, characterized by large cross-border flows and minimal domestic economic impact, highlights the need for smooth coordination with authorities in other jurisdictions.
The study also reminds policymakers to consider smaller sectors, such as money market funds or insurance corporations, as potential transmitters of shocks, even if their size is limited.
This underscores the broader application of network analysis in monitoring systemic risk, a tool increasingly vital since the global financial crisis.
Beyond the obvious
This paper confirms the expected bank centrality but crucially highlights outliers and non-bank roles in cross-border flows.
While offering a robust foundation for macroprudential vulnerability identification, its descriptive approach necessitates further analytical work.
Fully modeling shock transmission and contagion pathways remains a task for future research.