Small boost to airline profitability in 2013 - The International Air Transport Association (IATA) has announced a modest improvement in its outlook for the 2013 financial performance of the global airline industry primarily based on stronger revenues. IATA now expects airlines to produce a combined net post-tax profit margin of 1.6% (up from the previously forecast 1.3%) with a net post-tax profit of $10.6 billion (up from the previously projected $8.4 billion). Against a backdrop of...