Omnichannel retailing operations with coupon promotions

This paper explores an omnichannel retail system under which the retailer offers coupons via online channels for market share and profit. It investigates the action mechanism of coupon promotion on omnichannel price and operational decisions by employing a theoretical model. Three coupon distribution modes are investigated; a scenario in which the omnichannel retailer does not offer coupons, offers coupons with a common face value, or offers coupons with a different face value. The results show that the distribution of coupons does not always lead to increased market share. Rather, market volume may be reduced if the competition between different channels is intense. When conducting a coupon promotion, the retailer always charges a higher price, but if the negative effects of coupon promotion for the competitive channel are relatively large, the retailer will reduce their price. Larger cross-selling revenue comes from 'Buy Online, Pick Up in Store' channel, indicating a stronger willingness to offer coupons and higher profits for the retailer. If the retailer takes the channel characteristics and consumers' channel preferences into consideration and offers different coupon face values across channels, they will derive higher profits.