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Sovereign default probabilities within the european crisis

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Resumo:In this thesis we assess the real default probabilities of three groups of European sovereigns - peripheral, central and safe haven - in order to get a forward looking measure of the market sentiment about their default, as well as their evolution within the current European crisis. We follow Moody's CDS-implied EDF Credit Measures and Fair-Value Spreads methodology by extracting risk-neutral probabilities of default, assumed to be Weibull distributed, from CDS spreads and convert them into real probabilities of default, using an adaptation of the Merton model to remove the risk premium. We use CDS spreads data from 2008 to 2011 and country dependent market prices of risk as proxy for the risk premium based on the equity benchmark indices of each country. The obtained real default probabilities proved to be a suitable indicator to predict defaults according to the credit events. They have increased severely since 2009/2010, in particular for the peripheral economies - Greece, Ireland and Portugal. The Greece's 1-year probability of default reached 55% at the end of 2011 and a default took place in March 2012. These three countries had to request a bailout from the EU/IMF authorities, Greece and Ireland in 2010 and Portugal in April 2011. Spain and Italy, the central economies, have been a concern for investors, which is reected in their real probabilities of default that increased substantially during the second half of 2011. The safe haven sovereigns - Germany and France - were also not immune to the economic slowdown in Eurozone and its GDP started to shrink, however, the rise in the default probabilities was more limited.
Autores principais:Coutinho, Cristina Fonseca
Assunto:Crisis Risk-neutral probability Real probability Market price of risk CDS spreads Sovereign Weibull distribution Crise Probabilidade risco-neutral Probabilidade real Indice de Sharpe Preços dos CDS Soberano Distribui ção Weibull
Ano:2012
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
Descrição
Resumo:In this thesis we assess the real default probabilities of three groups of European sovereigns - peripheral, central and safe haven - in order to get a forward looking measure of the market sentiment about their default, as well as their evolution within the current European crisis. We follow Moody's CDS-implied EDF Credit Measures and Fair-Value Spreads methodology by extracting risk-neutral probabilities of default, assumed to be Weibull distributed, from CDS spreads and convert them into real probabilities of default, using an adaptation of the Merton model to remove the risk premium. We use CDS spreads data from 2008 to 2011 and country dependent market prices of risk as proxy for the risk premium based on the equity benchmark indices of each country. The obtained real default probabilities proved to be a suitable indicator to predict defaults according to the credit events. They have increased severely since 2009/2010, in particular for the peripheral economies - Greece, Ireland and Portugal. The Greece's 1-year probability of default reached 55% at the end of 2011 and a default took place in March 2012. These three countries had to request a bailout from the EU/IMF authorities, Greece and Ireland in 2010 and Portugal in April 2011. Spain and Italy, the central economies, have been a concern for investors, which is reected in their real probabilities of default that increased substantially during the second half of 2011. The safe haven sovereigns - Germany and France - were also not immune to the economic slowdown in Eurozone and its GDP started to shrink, however, the rise in the default probabilities was more limited.