323Kb
by STEFANESCU,
Poliana and
STEFANESCU, Stefan
Published in Romanian Journal of Economic Forecasting, volume 7 issue 2,
2006.
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In a previous study, (Stefanescu, P., Stefanescu, St., 2006) we suggested two
possible estimators for the unknown value of the parameter q which characterize
a homographic type HG(q) distribution.
In the current paper we shall prove that the proposed estimators of q based on
the median of the r.v. X, X ~ HG(q) , always over- evaluate the real value of q
. For this reason we determined an adjusted multiplicative factor such that the
median type estimators to become unbiased.
The theoretical results were confirmed experimentally by using a Monte Carlo
stochastic simulation technique.
Keywords:
homographic distribution, unbiased estimator, Monte Carlo technique, generating
random variables.
JEL Classification:
C13, C15