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Approximate bayesian estimation of stochastic volatility in mean models using hidden Markov models: empirical evidence from stock Latin American markets
(Pontificia Universidad Católica del Perú. Departamento de Economía, 2021-10)
The stochastic volatility in mean (SVM) model proposed by Koopman and Uspensky (2002) is revisited. This paper has two goals. The first is to offer a methodology that requires less computational time in simulations and ...
Threshold Stochastic Volatility Models with Heavy Tails: A Bayesian Approach
(Pontificia Universidad Católica del Perú. Fondo Editorial, 2019-09-16)
This paper extends the threshold stochastic volatility (THSV) model specification proposed in So et al. (2002) and Chen et al. (2008) by incorporating thick-tails in the mean equation innovation using the scale mixture of ...