Full article on economist.com
Look at a map of domestic air traffic in any rich country and the relationship between flying and economic prosperity becomes obvious. In America, 614 towns and cities have regular flights to other domestic airports. Australia has 144 such places. Even in modestly sized Britain that number is 49. The more complex and headache-inducing a domestic route map becomes, the more a country fosters connectivity between its regions. Development naturally flows. It is a symbiosis that helps to fuel growth in rising economies like India and China. Yet not all emerging markets foster the link between travel and wealth...