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ability to describe the US inflation data. Specifically, the model allows for long memory in the conditional mean formulation … yields a good description of the salient features, including skewness and heteroskedasticity, of the US inflation data …
Persistent link: https://www.econbiz.de/10014205690
ability to describe the US inflation data. Specifically, the model allows for long memory in the conditional mean formulation … yields a good description of the salient features, including skewness and heteroskedasticity, of the US inflation data … ; Inflation ; Long Memory ; Normal Mixture …
Persistent link: https://www.econbiz.de/10003921443
The estimation of inflation volatility is important to Central Banks as it guides their policy initiatives for … Heteroscedasticity (GARCH) family with a view to providing a parsimonious approximation to the dynamics of Nigeria's inflation volatility … and food CPI, implying that the impacts of inflation shocks on their volatilities die away very slowly. However, the …
Persistent link: https://www.econbiz.de/10011476231
In this paper we investigate the behavior of inflation persistence in the United States. To model inflation we estimate … varying persistence, which not only distinguishes between changes in the dynamics of inflation and its volatility, but it also … allows for feedback from nominal uncertainty to inflation. Our empirical results suggest that inflation persistence in the …
Persistent link: https://www.econbiz.de/10012843786
applied to quarterly and monthly US inflation in an empirical study. We find that the persistence of quarterly inflation has … and density forecasts for monthly US inflation. …
Persistent link: https://www.econbiz.de/10011809984
of US inflation using a model with time-varying mean and variance; we report significant improvements in the forecasting …
Persistent link: https://www.econbiz.de/10011688512
In this paper we propose a model for monthly inflation with stochastic trend, seasonal and transitory components with …, the uncertainty associated with these components may increase with the level of inflation as postulated by Friedman. We … experiments. Finally, we use auxiliary residuals to detect conditional heteroscedasticity in monthly inflation series of eight …
Persistent link: https://www.econbiz.de/10012724002
In this paper, we propose two parametric alternatives to the standard GARCH model. They allow the conditional variance to have a smooth time-varying structure of either additive or multiplicative type. The suggested parameterizations describe both nonlinearity and structural change in the...
Persistent link: https://www.econbiz.de/10003618525
The asymmetric moving average model (asMA) is extended to allow forasymmetric quadratic conditional heteroskedasticity (asQGARCH). Theasymmetric parametrization of the conditional variance encompassesthe quadratic GARCH model of Sentana (1995). We introduce a framework fortesting asymmetries in...
Persistent link: https://www.econbiz.de/10011303289
The paper advances the log-generalized gamma distribution as a suitable generator of conditional skewness. Based on the NYSE composite daily returns an asMA-asQGARCH model along with skewness dynamics is estimated. The results indicate a skewness that varies between sizeable negative skewness...
Persistent link: https://www.econbiz.de/10011398115