[R] Std Err on Concentration measures

[Angelo Secchi]

Hi,
I'm using the ineq package to calculate some concentration measures (Gini, Herfindal, ...) and I was wondering if there's around also a function to calculate standard error on these measures. If not, is anybody aware of where I can find a reference on this point?
Thanks.

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 Angelo Secchi                     PGP Key ID:EA280337