“…This type of study often includes an extended set of explanatory variables providing a richer description of the durable stock and other characteristics that are particularly important for the demand for energy. There are numerou.s examples including Barnes et al (1982), Branch (1993), Baker & Blundell (1991), Baker et al (1989), Dubin & Henson (1988), Dubin et al (1986), Garbacz (1983Garbacz ( , 1985, Green (1987), Green et al (1986), Haas et al (1998:1, Herriges & King (1994, Klein (1988), Morss & Small (1989), Parti & Pan:i (1980, Poyer &Williams (1993), andReilly &Shankle (1988).…”