A new study into the airport retailing sector has revealed that London Heathrow and Copenhagen are the leading airports for shoppers in Europe. The travel hubs topped a list of the continent’s leading retail centers compiled by strategic property consultancy, Harper Dennis Hobbs (HDH), beating off competition from Paris Charles De Gaulle and Rome Fiumicino. Air travel continues to grow globally, with the International Air Transport Association (IATA) reporting that airlines carried 4.4 billion passengers on scheduled services last year, an increase