limit the number of cabs in a city

There are many possible ways to limit the number of cabs in a city. The most common method is an explicit quota using a medallion that is kept forever and can be resold. One alternative is to charge a high license fee each year, which is equivalent to the city’s issuing a medallion or license that lasts only a year. A third option is to charge a daily tax on taxicabs. Using figures, compare and contrast the equilibrium under each of these approaches. Discuss who wins and who loses from each plan, considering consumers, drivers, the city, and (if relevant) medallion owners.
limit the number of cabs in a city