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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
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
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
We provide a new framework for modeling trends and periodic patterns in high-frequency financial data. Seeking adaptivity to ever-changing market conditions, we enlarge the Fourier flexible form into a richer functional class: both our smooth trend and the seasonality are non-parametrically...
Persistent link: https://www.econbiz.de/10011411344
We propose a noncausal autoregressive model with time-varying parameters, and apply it to U.S. postwar inflation. The … model fits the data well, and the results suggest that inflation persistence follows from future expectations. Persistence … curve indicate that current inflation also depends on past inflation although future expectations dominate. The implied …
Persistent link: https://www.econbiz.de/10013084430
The persistence property of inflation is an important issue for not only economists, but, especially for central banks …, given that the degree of inflation persistence determines the extent to which central banks can control inflation. Further …, not only is the level of inflation persistence that is important in economic analyses, but also the question of whether …
Persistent link: https://www.econbiz.de/10013045937
In this paper we extend the traditional GARCH(1,1) model by including a functional trend term in the conditional volatility of a time series. We derive the main properties of the model and apply it to all agricultural commodities in the Mexican CPI basket, as well as to the international prices...
Persistent link: https://www.econbiz.de/10011456514
The volatility of growth in U.S. real GDP declined dramatically in the mid-1980s. Viewed through the lens of linear autoregressive models, this phenomenon appears to be the result of a structural break in the innovation process that drives GDP fluctuations. We present an alternative model that...
Persistent link: https://www.econbiz.de/10014076095