Defesa de tese – Markov-switching models: empirical applications using classical and Bayesian inferences (PPGE)


Detalhes do Evento


Título: Markov-switching models: empirical applications using classical and Bayesian inferences
Autor: Fernando Henrique de Paula e Silva Mendes
Orientador: João Frois Caldeira e Marcelo de Carvalho Griebeler

Banca Examinadora:
André Alves Portela Santos (CNM/UFSC)
Flávio Augusto Ziegelmann (PPGE/UFRGS)
Osvaldo Cândido da Silva Filho (PRPGP/UCB)

Data: 19/08/2019, 14h,
Local: Sala 31B da FCE

Abstract: In this thesis, we present three empirical applications on finance and macroeconomics. The general modeling framework in all chapters is based on extensions of the Markov-switching model. And the statistical methodology is divided into two distinct areas; Classical and Bayesian inference.1 In the first one, we test for the presence of duration dependence in the Brazilian business cycle. The main results indicated that as the recession ages, the probability of a transition into an expansion increases (positive duration dependence in recessions). On the other hand, as the expansions ages, the probability of a transition into a recession decreases (negative duration dependence in expansions). In the second paper, we extend the research concerned with the evaluation of alternative volatility modeling and forecasting methods for Bitcoin log-returns. The in-sample estimates suggest evidence of long memory in the data series. When performing one-day ahead Value-at-Risk (VaR), our results outperform all standard single-regime GARCH models considered in the study. Finally, in the third paper2, we capture different regimes in Bitcoin volatility returns and test the mean-reversion hypothesis for multi-period returns. In general, we found evidence of mean-aversion for different holding returns. We also confirmed this result for alternative specifications and also carrying the analysis for sub-sample periods.

 

* As defesas de teses e dissertações são realizadas em sessões públicas, isto é, abertas ao público em geral, sem necessidade de inscrições prévias.

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