“…Production/inventory systems have been considered in numerous publications for over two decades (see monographs by Buzacott and Shanthikumar (1993), Hopp and Spearman (1996), Altiok (1997) and Zipkin (2001), and articles by Gavish and Graves (1981), Federgruen and Zipkin (1986), Altiok (1989), Srinivasan and Lee (1991), Ciarallo, Akella, and Morton (1994), Zijm and Vanhoutum (1994), Glasserman and Tayur (1996), Rubio and Wein (1996), Wang and Gerchak (1996), Moinzadeh and Aggarwal (1997), Erkip (1997, 1999), Gullu (1998), Liberopoulos and Dallery (2002)). The demand is almost always assumed to be random.…”