The Analysis of the Influence of a Sovereign Foreign LT Issuer Credit Rating on Credit Spreads and Asset Swap Spreads

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The Analysis of the Influence of a Sovereign Foreign LT Issuer Credit Rating on Credit Spreads and Asset Swap Spreads

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Masterarbeit aus dem Jahr 2012 im Fachbereich BWL - Bank, Börse, Versicherung, Fachhochschule des bfi Wien GmbH, Veranstaltung: Banking and Finance, Sprache: Deutsch, Abstract: The purpose of this paper is to measure the correlation between the foreign longterm
issuer credit ratings and both, credit spreads and ASW and to assess the role
that the Rating Agencies play on the capital markets.
Ratings reflect the financial strength and credit-worthiness of the issuer as assessed
by the external rating agency. Spreads indicate the market's expectations in
connection to the riskiness of the investment. Hence high spreads compensate
investors for the higher risk taken. The result of the analysis is that there indeed exist
correlations between foreign long-term issuer credit ratings and both, credit spreads
and ASW. A high spread is strongly correlated to a low credit rating.
However, even if the relationship exists, it is not possible to draw clear patterns of the
market behavior. In some of the analyzed cases, market movements took place
before a rating change, which indicates that both, the market and rating agencies
considered the same information. In other cases, the market was influenced by the
rating change. And sometimes the market reacted different to the rating agencies
decisions and expectations.
Overall the market reacts differently fast and not homogenous to the "fundamental"
information it has. This makes it impossible to clearly state the extent to which ratings
influence spreads. The results are not clear enough to indicate a more precise
answer or to fully understand the market behavior. The market is a highly volatile
environment in which it is impossible to draw predictable behavior patterns in relation
purely to the credit rating.
This inconsistency in reaction is partially conflicting the theory of the strong-form
EMH, as the market reacts to the asymmetric level of information available or prices
in