More transactions but a lower average transaction value: How mobile payment apps influence consumer purchases through time-savings
通过中国加油站现场实验发现，移动支付因节省排队时间而增加交易次数、降低单笔金额，且排队越长、竞争越近时效果越明显，对管理者有参考价值。
Mobile payment has become increasingly popular with consumers. In this study, we examine a key benefit of mobile payment: saving consumers time by bypassing the payment queue. In a field experiment with a Chinese retail gasoline chain, we find that the introduction of mobile payment decreases the average amount per transaction but increases overall sales by boosting the number of transactions. These effects are more pronounced when the expected waiting time to pay is longer and when competitors are closer. In addition, the impact is greater for premium than regular products and leads to an increase in cross-channel sales. Consistent with the time-saving rationale, these findings provide insights for managers wanting to increase sales by implementing a mobile payment option.