Hard-to-Read Fonts Promote Better Recall (2012)
hbr.org
hbr.org
http://www.princeton.edu/main/news/archive/S28/82/93O80/
Like the HBR article, the Economist article also left out too many details:
http://www.economist.com/node/17248892?story_id=17248892&...
If the details are correct, then the experiment design seems faulty.