Similar Search Results

Testing for a break in persistence under long-range dependencies

Sibbertsen, Philipp (contributor); … - 2007

We show that tests for a break in the persistence of a time series in the classical I(0) - I(1) framework have serious size distortions when the actual data generating process exhibits long-range dependencies. We prove that the limiting distribution of a CUSUM of squares based test depends on...

Persistent link: https://www.econbiz.de/10003575487

One-sided test for an unknown breakpoint : theory, computation, and application to monetary theory

Estrella, Arturo (contributor); … - 2005

The econometrics literature contains a variety of two-sided tests for unknown breakpoints in time-series models with one or more parameters. This paper derives an analogous one-sided test that takes into account the direction of the change for a single parameter. In particular, we propose a sup...

Persistent link: https://www.econbiz.de/10003226093

Backward CUSUM for testing and monitoring structural change

Otto, Sven; Breitung, Jörg - 2020

It is well known that the conventional CUSUM test suffers from low power and large detection delay. We therefore propose two alternative detector statistics. The backward CUSUM detector sequentially cumulates the recursive residuals in reverse chronological order, whereas the stacked backward...

Persistent link: https://www.econbiz.de/10012421897

Testing for multiple structural breaks in multivariate long memory time series

Sibbertsen, Philipp; Wenger, Kai Rouven; Wingert, Simon - 2020

This paper considers estimation and testing of multiple breaks that occur at unknown dates in multivariate long-memory time series. We propose a likelihood ratio based approach for estimating breaks in the mean and the covariance of a system of long-memory time series. The limiting distribution...

Persistent link: https://www.econbiz.de/10012313634

Robust tests for white noise and cross-correlation

Dalla, Violetta; Giraitis, Liudas; Phillips, Peter C. B. - 2020

Commonly used tests to assess evidence for the absence of autocorrelation in a univariate time series or serial cross-correlation between time series rely on procedures whose validity holds for i.i.d. data. When the series are not i.i.d., the size of correlogram and cumulative Ljung-Box tests...

Persistent link: https://www.econbiz.de/10012243279

Time-series momentum : a Monte-Carlo approach

Cheng, Enoch; Struck, Clemens - 2019

This paper develops a Monte-Carlo backtesting procedure for risk premia strategies and employs it to study Time-Series Momentum (TSM). Relying on time-series models, empirical residual distributions and copulas we overcome two key drawbacks of conventional backtesting procedures. We create...

Persistent link: https://www.econbiz.de/10011990919

A simple test on structural change in long-memory time series

Wenger, Kai; Leschinski, Christian; Sibbertsen, Philipp - 2017

We propose a simple test on structural change in long-range dependent time series. It is based on the idea that the test statistic of the standard CUSUM test retains its asymptotic distribution if it is applied to fractionally differenced data. We prove that our approach is asymptotically valid...

Persistent link: https://www.econbiz.de/10011655296

Permutation tests on returns to scale and common production frontiers in nonparametric models

Rønn-Nielsen, Anders; Kronborg, Dorte; Asmild, Mette - 2022

Permutation techniques, where one recompute the test statistic over permutations of data, have a long history in statistics and have become increasingly useful as the availability of computational power has increased. Until now, no permutation tests for examining returns to scale assumptions,...

Persistent link: https://www.econbiz.de/10013338075

The weak instrument problem of the system GMM estimator in dynamic panel data models

Bun, Maurice J. G.; Windmeijer, Frank - 2009

The system GMM estimator for dynamic panel data models combines moment conditions for the model in first differences … model in terms of bias and root mean squared error. However, we show in this paper that in the covariance stationary panel … results are shown to extend to the panel data GMM estimators. …

Persistent link: https://www.econbiz.de/10011379149

Nonparametric rank tests for non-stationary panels

Pedroni, Peter Louis; Vogelsang, Timothy J.; Wagner, Martin - 2011

This study develops new rank tests for panels that include panel unit root tests as a special case. The tests are …

Persistent link: https://www.econbiz.de/10009686205