Improving the Power of Tests of Stochastic Dominance
AbstractWe extend Hansen’s (2005) recentering method to a continuum of inequality constraints to construct new Kolmogorov-Smirnov tests for stochastic dominance of any pre-specified order. We show that our tests have correct size asymptotically, are consistent against fixed alternatives and are unbiased against some N−1/2 local alternatives. It is shown that by avoiding the use of the least favorable configuration, our tests are less conservative and more powerful than Barrett and Donald’s (2003) and in some simulation examples we consider, we find that our test can be more powerful than the subsampling test of Linton, Maasoumi and Whang (2005). We apply our method to test stochastic dominance relations between Canadian income distributions in 1978 and 1986 as considered in Barrett and Donald (2003) and find that some of the hypothesis test results are different using the new method.
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Bibliographic InfoPaper provided by Institute of Economics, Academia Sinica, Taipei, Taiwan in its series IEAS Working Paper : academic research with number 12-A015.
Length: 39 pages
Date of creation: Dec 2012
Date of revision: May 2013
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Web page: http://www.econ.sinica.edu.tw/index.php?foreLang=en
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Stochastic dominance; test consistency; simulation; bootstrap; uniform inference;
Find related papers by JEL classification:
- C01 - Mathematical and Quantitative Methods - - General - - - Econometrics
- C12 - Mathematical and Quantitative Methods - - Econometric and Statistical Methods and Methodology: General - - - Hypothesis Testing: General
This paper has been announced in the following NEP Reports:
- NEP-ALL-2012-12-22 (All new papers)
- NEP-ECM-2012-12-22 (Econometrics)
- NEP-ORE-2012-12-22 (Operations Research)
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