A reply to,“A note on regression estimation with unknown population size by hidiroglou,kim and nambeu (2016)”

Hidiroglou,kim and nambeu (2016),referred to hereafter as hkn,claimed to find through a simulation study that the singh and raghunath (2011) estimator performs “worst” for poisson sampling,with insufficient understanding of their own work,and without knowing the limitations of the poisson sampling. they claimed to show singh and raghunath‟s estimator does not work,but their own estimator is not even computable. curiously,they assert there is a parameter,which cannot be computed,but can be estimated by hkn methodology. this reply offers some needed clarification. © 2016 pakistan journal of statistics.