“…For detailed and recent studies on QF, its properties and usefulness in the identification of models we refer to Nair et al (2008Nair et al ( , 2011, Nair and Sankaran (2009), Nair (2009), Sankaran et al (2010) and the references therein. Many of the quantile functions used in applied work like various forms of lambda distributions (Ramberg and Schmeiser, 1974;Freimer et al, 1988;van Staden and Loots, 2009;Gilchrist, 2000), the power-Pareto distribution (Gilchrist, 2000, Hankin andLee, 2006), Govindarajulu distribution (Nair et al, 2011) etc. do not have tractable distributions.…”