it's ee sense chally an oligopoly. >> okay. whether it's fair one or not fair one and when you participate in the market and then you must accept the price they have given. >> reporter: the manager of a taxi agency says the rise in price is determined by demand and fueled by hong kong's very low interest rates on loans. >> translator: certain risks attract people to invest in stocks and property. if there is no risk involved, no one will be interested in investing. overall i don't think there's a big bubble in licensing. >> reporter: he's not worried either. they run by themselves. >> you're happy to collect the rent. >> yeah, exactly.