Abstract
We develop a novel real-time measure of sovereign default risk using natural language processing and implement it using 10 million news articles covering over 100 countries. Our News-implied Sovereign Risk Index (NSRI) is a high-frequency measure of countries' default risk, particularly for those lacking market-based measures: NSRI correlates with sovereign CDS spreads, predicts rating downgrades, and reflects default risk information not fully captured by CDS spreads. We assess the influence of sovereign default concerns on equity markets and find that spikes in NSRI are negatively associated with same-week market returns, which reverses over the next week, indicating that investors might overreact to default risk news. Equity markets' reaction to default concerns is more pronounced and persistent for countries with tight fiscal constraints. The reaction to global, compared to country-specific, default concerns is much stronger, underlining the relevance of global push factors for local asset prices.
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