Uber is one of many suppliers for driver/rider matching services. They are not a gatekeeper either, and its unclear what rent you think they collect. (In contr

Uber is one of many suppliers for driver/rider matching services. They are not a gatekeeper either, and its unclear what rent you think they collect. (In contrast, traditional taxis do collect rents - the delta between a medallion restricted taxi market and one without barriers to entry.)