Auckland Airport wants to put up its landing charges to help pay for a multibillion dollar revamp of its terminals. Its biggest customer, Air NZ, is complaining that the airport is over-charging. So who is right? What is fair? And what happens when two effective monopolies butt heads? Bernard Hickey talks to Auckland Airport CEO Carrie Hurihanganui about the dispute, how the Commerce Commission factors in, and what the airport is planning to mitigate its long-term impact on the changing climate.Learn more about your ad choices. Visit megaphone.fm/adchoices