Comparar métodos
Examine os métodos selecionados lado a lado; as linhas que diferem ficam destacadas.
| GARCH de Correlação Condicional Dinâmica Robusto (DCC-GARCH Robusto)× | Modelo GARCH Robusto× | |
|---|---|---|
| Área | Econometria | Econometria |
| Família | Regression model | Regression model |
| Ano de origem≠ | 2002–2021 | 1986–2013 |
| Autor original≠ | Engle (2002) for DCC; robust extensions by Pakel, Shephard, Sheppard, and Engle (2021) | Boudt, Danielsson & Laurent (robust extensions); Bollerslev (standard GARCH, 1986) |
| Tipo≠ | Multivariate volatility model with robust estimation | Volatility model |
| Fonte seminal≠ | Engle, R. F. (2002). Dynamic conditional correlation: A simple class of multivariate generalized autoregressive conditional heteroskedasticity models. Journal of Business and Economic Statistics, 20(3), 339–350. DOI ↗ | Boudt, K., Danielsson, J., & Laurent, S. (2013). Robust forecasting of dynamic conditional correlation GARCH models. International Journal of Forecasting, 29(2), 244–257. DOI ↗ |
| Outros nomes | robust DCC-GARCH, robust dynamic conditional correlation, outlier-robust DCC, composite-likelihood DCC-GARCH | Robust GARCH, outlier-robust GARCH, heavy-tail GARCH, contamination-robust volatility model |
| Relacionados≠ | 6 | 5 |
| Resumo≠ | The Robust DCC-GARCH model extends Engle's (2002) Dynamic Conditional Correlation framework by replacing standard quasi-maximum likelihood estimation with outlier-resistant or composite-likelihood techniques. This preserves accurate time-varying correlation estimation even when financial return data contain extreme observations, heavy tails, or structural irregularities. | The Robust GARCH model extends the classical GARCH framework to handle outliers and heavy-tailed innovations that commonly appear in financial return series. By down-weighting extreme observations through a robust innovation term, it produces more reliable volatility forecasts when data contain jumps, crises, or other anomalies that would otherwise distort standard GARCH estimates. |
| ScholarGateConjunto de dados ↗ |
|
|