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We develop extensions of the variance-ratio statistic for testing the hypothesis a time series is uncorrelated and investigate their finite-sample performance. The tests employ an estimator of the asymptotic covariance matrix of the sample autocorrelations that is consistent under the null for...
Persistent link: https://www.econbiz.de/10005342915
This paper shows how a high level matrix programming language may be used to perform Monte Carlo simulation, bootstrapping, estimation by maximum likelihood and GMM, and kernel regression in parallel on symmetric multiprocessor computers or clusters of workstations. The implementation of...
Persistent link: https://www.econbiz.de/10005343007
The fast increase in computing power makes it possible to rapidly generate synthetic high frequency financial time series by Monte Carlo with any desired distribution of the increments and of the waiting times between increments, even for sets of securities as large as those traded on a whole...
Persistent link: https://www.econbiz.de/10005345364
We are interested in determining the number of common trends and common cycles in the output of a set of Latin American countries. In order to work with homogeneous and reasonably good series however, we should rely on annual data. Consequently, the number of variables is relatively large...
Persistent link: https://www.econbiz.de/10005706324
Many time series in diverse fields have been found to exhibit long memory. This paper analyzes the behavior of some of the most used tests for long memory: the R/S or rescaled R/S, the GPH (Geweke and Porter-Hudak) and the DFA (Detrended Fluctuation Analysis). Some of these tests exhibit size...
Persistent link: https://www.econbiz.de/10005706495
Persistent link: https://www.econbiz.de/10005706629
Using threshold autoregressive specifications, this paper develops new parametric tests for level asymmetries. It proposes bootstrap likelihood ratio statistics to test the symmetric adjustment null against sign and amplitude asymmetries or a combination of both. Monte Carlo simulations show...
Persistent link: https://www.econbiz.de/10005706770
Monte Carlo simulations are used to explore the small-sample properties of a mean group and two pooled panel estimators of a regression coefficient when the regressor is I(1). We compare and contrast the effect of I(0) and I(1) errors and homogeneous and heterogeneous coefficients in a design...
Persistent link: https://www.econbiz.de/10005132876
This note describes ParallelKnoppix, a bootable CD that allows econometricians with average knowledge of computers to create and begin using a high performance computing cluster for parallel computing in very little time. The computers used may be heterogeneous machines, and clusters of up to...
Persistent link: https://www.econbiz.de/10005537430
Persistent link: https://www.econbiz.de/10005537682