Overview
Ronald J. Mahieu is a financial econometrician. His research focuses on stochastic volatility estimation, exchange rate dynamics, and options pricing with latent volatility processes.
Key Contributions / Features
- Stochastic Volatility — Mixture of Normals (Mahieu-Schotman 1998) — "An Empirical Application of Stochastic Volatility Models," Journal of Applied Econometrics 13 (1998) 333–359. Extended the Kim-Shephard-Chib (1998) fixed-mixture-of-normals approximation to a flexible mixture with estimated components; documented severe QML bias in SV parameter estimation; showed that measurement noise (π2/2) dominates total variation in log-squared returns for weekly exchange rates; applied to option pricing with simulation. See Stochastic Volatility.
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