We present a model of timing of seasonal sales in which stores choose sever
al designs before the season without knowing which, if any, is fashionable.
Stores begin by charging high prices to capture the fashion market. As the
season approaches the end with goods still unsold, stores have sales to ca
pture the discount market. More designs and greater price competition in th
e discount market induce earlier sales. The results are consistent with the
observation that the trend toward earlier sales since the mid-1970s coinci
des with increasing product varieties in fashion goods markets and increasi
ng store competition.