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An effective approach for forecasting return volatility via threshold nonlinear heteroskedastic models of the daily asset price range is provided. The return is defined as the difference between the highest and lowest log intra-day asset price. A general model specification is proposed, allowing...
Persistent link: https://www.econbiz.de/10014207634
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/10010281252
We use noncausal autoregressions to examine the persistence properties of quarterly U.S. consumer price inflation from … 1970:1.2012:2. These nonlinear models capture the autocorrelation structure of the inflation series as accurately as their … conventional causal counterparts, but they allow for persistence to depend on the size and sign of shocks to inflation as well as …
Persistent link: https://www.econbiz.de/10009724820
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/10009724822
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
characterization of the Australian GDP, German GDP and the USA GDP in the frames of the state-space model in Matlab. We also used the … Hodrick-Prescott filter to estimate the corresponding output gaps in Australia, Germany and the USA. We found that the … Australia, Germany on one side and the USA on other side have the different business cycles. We believe that the central banks …
Persistent link: https://www.econbiz.de/10013024408
One of the key elements for inflation targeting regime is the right identification of inflationary or disinflationary … unobserved component (MUC) model, relying on an explicit short run relation between the output gap and inflation rate (Phillips … to end of sample problems and exhibits closer dynamics with the inflation process than the standard output gap estimates …
Persistent link: https://www.econbiz.de/10014066132
This paper revisits the fractional co-integrating relationship between ex-ante implied volatility and ex-post realized volatility. Previous studies on stock index options have found biases and inefficiencies in implied volatility as a forecast of future volatility. It is argued that the concept...
Persistent link: https://www.econbiz.de/10011280711
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
There are a number of econometrics tools to deal with the different types of situations in which cointegration can appear: I(1), I(2), seasonal, polyno- mial, etc. There are also different kinds of Vector Error Correction models related to these situations. The authors propose a unified...
Persistent link: https://www.econbiz.de/10011554319