Estimating Demand for Subscription Products: Identification of Willingness to Pay Without Price Variation
利用使用量和订阅选择的变化，估计缺乏价格变动的订阅产品的消费者支付意愿，对研究定价和需求的经济学者有用。
We obtain consumer willingness to pay for subscription product lacking price variation by leveraging the usage and subscription choice variation.