英语翻译With a sales rebate contract the supplier charges Ws per

英语翻译
With a sales rebate contract the supplier charges Ws per unit purchased but then gives the retailer an r rebate per unit sold above a threshold t.This contract form is studied by Taylor (2000) and Krishan,Kapuscinski and Butz (2001),where the latter refers to it as a“markdown allowance”.Both models are more complex than the one considered here.In particular both papers allow the retail to exert effort to increase demand:in Taylor (2000)effort is chosen simultaneously with the order quantity,whereas Krishan,Kapuscinski and Butz (2001) focus on the case in which the retailer chooses an order quantity,a signal of demand is observed and then effort is exerted.Hence,if the demand signal is strong relative to the order quantity ,then the retailer does not need to exert much effort.See §4 for
additional discussion of coordination in the presence of retail effort.