Fast fashion is an industrial trend that is pertinent in practice. It refers to the concept of shortening lead time (production, distribution etc) and offering new products to the market as fast as possible. Nowadays, this phenomenon is commonly adopted in fashion1 apparel (by brands such as Zara, Topshop, H&M etc) and also “fashionable’’ consumer electronics (e.g. iphone). From an analytical modelling perspective, the key components of fast fashion systems include (Cachon and Swinney 2011):

(i) Quick response policy which is employed to reduce the system response time (i.e. lead time) so that volatile demand and supply can better match.