Craigslist, the online-ad site, saved the placers of classified advertisements $5 billion from 2000 through 2007, according to an analysis by Robert Seamans of New York University and Feng Zhu of ...
I compared the economic effects of dual enrollment on colleges to the economic effects of Craigslist on newspapers. Craigslist allows people to place ads for free online. That siphoned away people who ...
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