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| Emerging Market Risk and Sovereign Credit Ratings by Guillermo Larraín of the OECD Development Centre April 1997 Summary: In principle, the sovereign credit rating industry could help mitigate the congestion externalities common to world capital markets that arise from the failure of market participants to internalise the social cost of external borrowings. This would require that modifications in ratings on government bonds convey new information to market participants, with changes in credit ratings leading to changes in country risk premia. Using panel data analysis and event studies this paper presents econometric evidence that changes in credit rating have a significant impact on international financial markets. In line with earlier studies, our event study finds a highly significant announcement effect when emerging-market sovereign bonds are put on review with negative outlook. Our findings imply that the sovereign rating industry has the potential to help dampen excessive private capital inflows into the emerging markets with negative rating announcements. Books Referenced in this paper: (what is this?)
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