Meetings of airline bosses are rarely cheerful events, profits being tighter than leg room in economy. But this year's annual gathering of the International Air Transport Association (iata) should have been different. For a start, the airlines' umbrella group picked the most promising market to host the pow-wow, which was held in Beijing. Not only is air travel booming within and from China, but the country's airlines also made half of all global profits last year.
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