Einav, Liran; Klenow, Peter J.; Levin, Jonathan; … - National Bureau of Economic Research - 2021
stores. Customers, as opposed to transactions per customer or dollar sales per transaction, consistently account for about 80 …% of sales variation. The top 1% of growing and shrinking merchants account for about 70% of customer and sales … with and without the customer margin. In the context of this model, we find that the customer margin dramatically increases …