What "hides" behind sovereign debt ratings?

In this paper we study the determinants of sovereign debt credit ratings using rating notations from the three main international rating agencies, for the period 1995-2005. We employ panel estimation and random effects ordered probit approaches to assess the explanatory power of several macroeconomi...

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Detalhes bibliográficos
Autor principal: Afonso, António (author)
Outros Autores: Gomes, Pedro (author), Rother, Philipp (author)
Formato: workingPaper
Idioma:eng
Publicado em: 2010
Assuntos:
Texto completo:http://hdl.handle.net/10400.5/2134
País:Portugal
Oai:oai:www.repository.utl.pt:10400.5/2134
Descrição
Resumo:In this paper we study the determinants of sovereign debt credit ratings using rating notations from the three main international rating agencies, for the period 1995-2005. We employ panel estimation and random effects ordered probit approaches to assess the explanatory power of several macroeconomic and public governance variables. Our results point to a good performance of the estimated models, across agencies and across the time dimension, as well as a good overall prediction power. Relevant explanatory variables for a country's credit rating are: GDP per capita, GDP growth, government debt, government effectiveness indicators, external debt, external reserves, and default history.