Dear Sebastian,
I had a look at the code and it appears you are using method of moments calculation to
get the expected sample variance? Method of moment does not always guarantee an
unbiased estimator unfortunately... I have done similar sort of work for my research
as I cannot see any obvious estimators to use. Perhaps a good idea is to use maximum
likelihood estimator? I am not sure how to get the distribution of the column sums of
your matrix however! Maybe others can comment on this too?
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Steve Su ([EMAIL PROTECTED])
Postdoctoral fellow
School of Accountancy
Queensland University of Technology
Postal Address: Steve Su, School of Accountancy, QUT, PO Box 2434, Brisbane,
Queensland, Australia, 4001.
Phone: +61 7 3864 4357
Fax: +61 7 3864 1812
Mobile: 0421 840 586
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