Saturday, June 4, 2016

TSA-Pre Checks --- Quantity Demanded vs Change in Demand

Bloomberg has an article on TSA Pre-checks that provides another good example to illustrate a basic yet difficult to grasp Microeconomic concept: the difference between a change in Quantity Demanded when there is a change in price and a change in demand when something other than a change in price affects the market. Got that?
"""...The agency’s Pre-Check program is designed to fix that problem and move the lines—but only 2.77 million people have enrolled to date, far below projections. The TSA wants to have 25 million people signed up by 2019 for federal “trusted traveler” programs such as PreCheck, for domestic travel, and Global Entry, the program for international travelers run by the U.S. Customs and Border Protection.
"""...But according to the U.S. Travel Association, a lower fee and simpler application process would spur 7 million more people to enroll in the PreCheck program. In a statement Thursday, the group based its claim on a survey of 1,000 domestic travelers conducted March 7-10. Of the 1,000 people, 20.5 percent said they would likely enroll in PreCheck. Among the rest, half cited the $85 fee as the reason they would probably not enroll...."---(bold and underline are mine).
Let's take both of the claims made in the first sentence of this last paragraph, separately and then together, to see how this plays out on a market demand curve.

If you are reading this while standing in line to get through airport security, I hope it makes the wait more satisfying.  :)
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