JFQA Admin

JFQA Admin

Financing Innovation Under Ambiguity

Hening Liu, Wenbin Cao, and Xiaoman Duan ♦ We develop a real options model in which an entrepreneur facing ambiguity makes optimal investment and financing decisions for an innovation project. We introduce jumps in innovation returns and model investors’ aversion…

Who Prices Credit Rating Inflation?

Christoph Herpfer and Gonzalo Maturana ♦ Credit rating agencies (CRAs) are less likely and slower to downgrade firms with performance-sensitive debt (PSD) if these downgrades increase borrowing costs. This effect is stronger when CRAs rate their most profitable clients and…

Optimal Portfolio Size Under Parameter Uncertainty

Nathan Lassance, Rodolphe Vanderveken, and Frédéric Vrins ♦ We introduce a method to determine the investor’s optimal portfolio size that maximizes the expected out-of-sample utility under parameter uncertainty. This portfolio size trades off between accessing investment opportunities and limiting the…