The growth of ride-sharing services such as Uber and Lyft has generated much discussion in the news. Drivers operate as independent businesses, working as many hours as they choose and earning a portion of the fares. Fares are set by the company, with market prices increasing during periods of high demand, such as "surge" pricing by Uber. From the driver's perspective, ride-sharing companies share many characteristics with perfectly competitive firms.
Which of the following is not a characteristic found in ride-sharing companies?
The short-run supply curve is nonexistent.
Drivers do not have control of the prices.
Supply is determined by the marginal cost incurred by each driver.
Drivers face few barriers to entry.

Relax