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observations resulting in ties. …
Persistent link: https://www.econbiz.de/10010837929
resulting in ties. …
Persistent link: https://www.econbiz.de/10010731611
resulting in ties. …
Persistent link: https://www.econbiz.de/10008552166
resulting in ties. …
Persistent link: https://www.econbiz.de/10010870608
Bootstrapping non-parametric models is a fairly complicated exercise which is associated with implicit assumptions or requirements that are not always obvious to the non-expert user. Bootstrap DEA is a significant development of the past decade; however, some of its assumptions and properties are...
Persistent link: https://www.econbiz.de/10009583705
We propose double bootstrap methods to test the mean-variance efficiency hypothesis when multiple portfolio groupings of the test assets are considered jointly rather than individually. A direct test of the joint null hypothesis may not be possible with standard methods when the total number of...
Persistent link: https://www.econbiz.de/10010429974
While permutation tests and bootstraps have very wide-ranging application, both share a common potential drawback: as data-intensive resampling methods, both can be runtime prohibitive when applied to large or even medium-sized data samples drawn from large datasets. The data explosion over the...
Persistent link: https://www.econbiz.de/10012974353
Financial event studies using daily stock returns are frequently employed in the analysis of mergers to estimate the sign and magnitude of stock movements to particular merger announcements. A common method of conducting the event study is least squares regression with dummy variables. Daily...
Persistent link: https://www.econbiz.de/10014026837
We propose consistent nonparametric tests of conditional independence for time series data. Our methods are motivated from the difference between joint conditional cumulative distribution function (CDF) and the product of conditional CDFs. The difference is transformed into a proper conditional...
Persistent link: https://www.econbiz.de/10013324332
small samples. Emphasis is put on within-sample-dependence, between-sample dependence, and the presence of ties. Our results … experimental settings where ties and within-sample dependence are frequently observed. …
Persistent link: https://www.econbiz.de/10010263795