“…It has been found in describing distributions of studies of income, property values, insurance risk, stock prices fluctuations, migration, size of cities and firms, word frequencies, occurrences of natural resources, business failures, service time in queuing systems, error clustering in communications circuits and lifetime data, etc (Arnold and Press, 1983;Fernández, 2008). The Pareto distribution has been used by many authors in a Bayesian viewpoint (e.g., Press, 1983, 1989;Geisser, 1984Geisser, , 1985Lwin, 1972;Nigm and Hamdy, 1987;Tiwari et al, 1996;Ko and Kim, 1999;Fernández, 2008;Kim et al, 2009;. For the common scale parameter, Elfessi and Jin (1996) derived a class of improved estimators which uniformly dominates the MLE under a class of convex scale invariant loss functions.…”