The International Air Transport Association (IATA) released data showing air freight markets in March were up 5.9% compared to a year ago and capacity grew 3.4%. While this marks a significant improvement in volumes compared to March 2013, much of the growth took place in the final quarter of 2013 (over and above the usual year-end volume growth). Since the beginning of the year, air cargo volumes have been basically flat. This plateau in volumes is consistent with the recent pause in improvements to business confidence and world trade.