The validation of the Probabilities of Default estimated by a rating system model is particularly challenging in the context of low default portfolios; for example, Sovereign portfolios tend to exhibit a very low number (often zero) of defaults, so that traditional hypothesis tests are...

We develop models for portfolio diversification in the sovereign credit default swap (CDS) markets and show that, despite literature findings that sovereign CDS spreads are affected by global factors, there is sufficient idiosyncratic risk to be diversified away. However, we identify regime...

In this paper I explore the role of portfolio diversification in explaining the distribution of foreign investment across countries. I capture the portfolio diversification motive by a measure of country-specific riskiness, “covariance risk,” which I construct as how countries' growth rates...

We analyze the impact of monetary policy on bilateral cross-border bank flows using the BIS Locational Banking Statistics between 1995 and 2014. We find that monetary policy in the source countries is an important determinant of cross-border bank flows. In addition, we find evidence in favor of...

This paper analyzes the dynamics of risk premia, real exchange rates and portfolio movements in a two-country, two-good, two-bond model. We use an asymmetric set-up in the model, where one of the countries is emerging and the other one is developed and both countries issue bonds in domestic...

This paper analyzes the dynamics of risk premia, real exchange rates and portfolio movements in a two-country, two-good, two-bond model. We use an asymmetric set-up in the model, where one of the countries is emerging and the other one is developed and both countries issue bonds in domestic...

We provide a methodology for credit risk analysis that can be embedded into a risk appetite framework. We analyze the information content in CDS spreads to estimate the systematic and idiosyncratic components of credit risk for CDS issuers in the industrial sector of Europe. Such decomposition...

The expansion in financial sector "safe" assets, largely in the form of structured products from the U.S. and the Caribbean, in the lead-up to the global financial crisis has by now been fairly well documented. Using a unique dataset derived from security-level data on U.S. portfolio holdings of...