最困扰全球航空公司业的一个问题就是:为何它在一个完整的商业周期里不能盈利?在2000-2009年期间,全球航空公司业净亏损估计超过520亿美元;在更长的一个时期(1980-2009年期间),行业范围的净亏损估计约为160亿美元。对于航空公司业在本商业周期不能盈利的一个普遍解释就是:它太分散,运 One of the most troubling questions for the global airline industry is why it can not make a profit during a complete business cycle. The global airline industry’s net loss was estimated to exceed 52 billion U.S. dollars over the period 2000-2009. Over a longer period of time (1980 - 2009), industry-wide net loss is estimated at about 16 billion U.S. dollars. One common explanation for the inability of the airline industry to benefit from this business cycle is that it is too fragmented to transport