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Interbank Linkages and Contagion Risk in the Portuguese Banking System

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Resumo:Interbank money markets play a fundamental role in financial systems, since they allow for the redistribution of liquidity between financial institutions. However, they can also be a channel through which problems in one institution can spread to the remaining ones. In particular, the potential for contagion stemming from interbank money markets is closely related with the pattern of interbank lending relationships. In this study, we characterize the Portuguese overnight interbank money market between 1999 and 2009 and analyze its inherent potential for contagion, based on bilateral interbank exposures obtained from the application of Furfine's procedure to settlement data from the Portuguese TARGET component. We conclude that: (i) the Portuguese overnight interbank money market is ruled out by a multiple money center structure, where some banks have, simultaneously, an important role as lenders as well as borrowers; (ii) although unlikely, the failure of one institution can have contagion effects, pushing-others into failure. However, even under the most extreme assumptions, institutions that fail by contagion represent less than 10 per cent of the total banking system assets. On the other hand, even if there are no defaults due to contagion, a foreign bank failure can have non-negligible knock-on effects under national banks. Yet, overnight interbank lending relationships do not generally represent a major threat to the stability of the Portuguese financial system.
Autores principais:Fernandes, Lara Mónica Machado
Assunto:Money market Interbank lending Overnight Financial contagion Market structure Mercado Monetário Empréstimos interbancários Contágio financeiro Estrutura de mercado
Ano:2011
País:Portugal
Tipo de documento:dissertação de mestrado
Tipo de acesso:acesso aberto
Instituição associada:Universidade de Lisboa
Idioma:inglês
Origem:Repositório da Universidade de Lisboa

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