US downgrade forces Damodaran to reprice sovereign risk globally
NYU professor Aswath Damodaran has stripped the US of its risk-free benchmark status in his valuation model, a conceptual shift that demands investors price operational geography rather than corporate incorporation.
NYU Stern finance professor Aswath Damodaran has fundamentally altered his global valuation framework to account for US sovereign risk, marking a conceptual break from decades of financial modelling. The shift follows the downgrade of US debt to Aa1, which eliminated the premise that the world’s largest equity market carries no default risk.
Previously, the implied equity risk premium on the S&P 500 served as the default-free mature-market baseline. With the index at 7,499.36 on July 1, Damodaran calculated the US implied premium at 4.42%. He then deducted a 0.22% default spread tied to the Aa1 rating to establish a true mature-market equity risk premium of 4.20%.
The mechanical adjustment is slight, but the implications for global asset pricing are substantial. “There is no place to hide from country risk,” Damodaran wrote, arguing that investors can no longer assume geographic diversification protects portfolios. Global equity markets are now highly correlated precisely during crises, the exact moments when diversification is most needed.
For multinationals and investors, this means country risk must be tied to operational footprints rather than corporate domiciles. Damodaran noted that outside regulated utilities, almost all companies now have foreign revenue or production exposure. Valuing an Indian or Brazilian firm requires assessing how that specific country's risks impact cash flows and required returns.
The methodology applies equally to foreign direct investment. A Siemens appliance plant in India carries Indian country risk if production is the primary uncertainty. However, if that same factory manufactures goods for volatile Japanese demand, the risk adjustment shifts to Japan, or a weighted combination of both.
Pricing these risks remains difficult. Sovereign ratings are widely used but slow to react, while credit-default swap spreads cover only 84 countries, excluding much of Africa and frontier markets. Composite political-risk scores are deeply inconsistent—one metric cited by Damodaran ranked the US as riskier than Ghana.
Currency volatility does not warrant a separate risk premium, as it merely reflects underlying political and economic forces. Instead, Damodaran traces country risk to five factors: political structure, corruption, violence, legal contract enforcement and, increasingly, climate exposure. This evaluation occurs against a global backdrop where only 7.3% of the world’s population lives in a democracy as of the end of 2025.
