There was an interesting article on that recently: http://www.slate.com/articles/business/moneybox/2012/06/taxi_medallions_how_new_york_s_terrible_taxi_system_

There was an interesting article on that recently: http://www.slate.com/articles/business/moneybox/2012/06/taxi_medallions_how_new_york_s_terrible_taxi_system_makes_fares_higher_and_drivers_poorer_.html http://www.slate.com/articles/business/moneybox/2012/06/taxi... "New York fares have gone up six times over the last 30 years, yet drivers’ real income has fallen"