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integration techniques. We implement a version of the tests of Robinson (1994a), which enables one to consider unit (or fractional …
Persistent link: https://www.econbiz.de/10005063571
A new approach for Robust DEA technical efficiency measurements is presented, based on a combination of Jackknife and Bootstrap resampling schemes. First, an algorithm implementing jackknife is used to extract leverage for all data points, that is, the impact of the removal of the observed point...
Persistent link: https://www.econbiz.de/10005129766
In this paper, we concentrate ourselves on Inclán and Tiao (1994)'s cusum test in regression models with ARCH errors. The ARCH and GARCH models have long been popular in financial time series analysis. For a general review, see Gouriéroux (1997).Inclán and Tiao (1994)'s cusum test was...
Persistent link: https://www.econbiz.de/10005130233
Kernel density estimation for multivariate data is an important technique that has a wide range of applications in econometrics and finance. However, it has received significantly less attention than its univariate counterpart. The lower level of interest in multivariate kernel density...
Persistent link: https://www.econbiz.de/10005702571
-Smirnov, Cramér-von Mises and Anderson-Darling tests fail to have good power particularly against very specific alternatives. We show …
Persistent link: https://www.econbiz.de/10005702690
In order to forecast one-step ahead volatility, we calculated jump intensity by using estimated parameters of a duration model of price change. In this procedure, we do not assume any distribution on log-return. Although we do not make any distributional assumption, we may practically choose a...
Persistent link: https://www.econbiz.de/10005702699
There is a growing literature on unit root testing in threshold autoregressive models. This paper makes two contributions to the literature. First, an asymptotic theory is developed for unit root testing in a threshold autoregression, in which the errors are allowed to be dependent and...
Persistent link: https://www.econbiz.de/10005342185
-type and point-optimal tests are studied. Special problems considered include the hypothesis of no-ARCH effects and IARCH … structure. We propose exact inference based on pivotal Monte Carlo tests [as in Dufour and Kiviet (1996, 1998) and Dufour …, Khalaf, Bernard and Genest (2004)] and maximised Monte Carlo tests [Dufour (2004))], depending on whether nuisance parameters …
Persistent link: https://www.econbiz.de/10005342251
the standard tests still have asymptotic distributions free of serial correlation nuisance parameters regardless of the … bandwidth choices are made. Finite sample simulations comparing the size and power of the tests using the fixed-b asymptotics to … some of the currently popular tests are performed. These simulations confirm that the well-known size distortion of the …
Persistent link: https://www.econbiz.de/10005342277
This paper uses the approach of Im, Pesaran and Shin (2003) to propose seasonal unit root tests for dynamic … simply averages of the HEGY tests across groups. These statistics converge to standard normal variate …
Persistent link: https://www.econbiz.de/10005129780