How push messaging impacts consumer spending and reward redemption in store-loyalty programs
研究了零售店忠诚度计划中，应用内推送通知对消费者支出和奖励兑换的影响，发现推送消息能提升支出和兑换，且效果因发送时机和消费者特征而异。
Retailer loyalty programs (LPs) are pervasive in grocery retailing. However, participant spending and redemption typically wear off over time and traditional communication has not revealed very effective at maintaining program engagement. We study the impact of in-app mobile push notifications on consumer participation and reward collection in store-loyalty programs. Using a unique data set covering consumer spending before and during such a program, we estimate the effect of push messaging on expenditure and reward redemption during the program. We report positive effects of push messages on spending, and even stronger effects on redemption, relative to a control group not receiving such messages. Due to the savings dynamics, the total spending impact is larger for messages sent early on rather than late in the program, while the opposite holds for the total number of stamps redeemed. Conditioning on observable consumer characteristics, we allow for heterogeneous treatment effects and find that the spending and redemption effects of push messaging increase with high levels of pre-program spending. Our findings reveal which loyalty-program stakeholders benefit the most from mobile marketing campaigns, and help to formulate rules for campaign scheduling and targeting.