韩宝明：刚才是讲的需求，现在就要说供给。
Han Baoming: We just talked about demand; now I am going to talk about supply.
韩宝明(右)，教授，北京交通大学交通运输学院。
Han Baoming (right), professor at School of Traffic and Transportation, Beijing Jiaotong University.
韩宝明：这种需求是弹性的，有人可能说想回家探亲，买不到票他就不回去了。
Han Baoming: The demand is flexible. Some may just not go home, if he or she cannot get a ticket.
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