Free ebooks correlated with increased print-book sales

better source: http://bloggasm.com/new-study-shows-some-correlation-between...

actual paper: http://quod.lib.umich.edu/cgi/t/text/text-idx?c=jep;view=tex...

nice result, I've been praying that for music for ages.

This makes a lot of sense. People who like ebooks, whether they own some sort of reader or just dont mind reading a book on their screens, are still a minority.

However, if they read something and tell others about it, they're opinions and hype are just as valid as the next man's. It follows that peers who don't read ebooks may be intrigued enough to actually buy a physical copy