Seeger, N., Rodrigues, P. and Ignatieva, K. (2015). Empirical Analysis of Affine vs. Nonaffine Variance Specifications in Jump-Diffusion Models for Equity Indices Journal of Business and Economic Statistics, 33(1):68--75.
JournalJournal of Business and Economic Statistics
This article investigates several crucial issues that arise when modeling equity returns with stochastic variance. (i) Does the model need to include jumps even when using a nonaffine variance specification? We find that jump models clearly outperform pure stochastic volatility models. (ii) How do affine variance specifications perform when compared to nonaffine models in a jump diffusion setup? We find that nonaffine specifications outperform affine models, even after including jumps.