You probably teach MERIT to your students for shifts in demand as opposed TRICE for supply). Here is an article on whether or not people are going to stop flying due to the "Ebola nurse" flying to Cleveland from Houston.
As with the other articles I have posted today, I plan on showing one or two of them to my students tomorrow and asking what might happen to demand and if plane use shifts, then how would we know if something is a substitute?
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