11.   While airlines continue to wage war over economy fares, another form of competition is escalating on international routes.

n. + fare >>共 303
air 31.06%
bus 7.65%
business 2.91%
discount 2.84%
taxi 2.77%
airline 2.30%
cab 2.10%
train 1.83%
transport 1.49%
coach 1.35%
economy 0.74%
economy + n. >>共 408
minister 15.22%
ministry 4.56%
standard 2.95%
stock 2.45%
remains 1.96%
rebound 1.89%
car 1.82%
company 1.61%
sour 1.47%
measure 1.40%
fare 0.77%
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