Imagine that you are asked to analyze the regulation of taxi service in a city like Madison. Your research, however, leads you to predict that elimination of the 24/7 rule would result in the absence...

Imagine that you are asked to analyze the regulation of taxi service in a city like Madison. Your research, however, leads you to predict that elimination of the 24/7 rule would result in the absence of service during some periods. Design an alternative that permits the entry of single-driver cab companies but also guarantees round-the-clock availability of service.