Daniel Pink has some surprising results about what motivates people. Mostly, if there’s any creativity, then more money doesn’t provide more motivation — and may even unmotivate.
[amazonshowcase_ec65abc582c704c4c22c03d1a0a2b41e]
[Doug Green](http://www.drdouggreen.com/2010/01/drive-motivation-matters/) has a detailed review of this book — I [saved a copy](http://peteware.com/files/2010/05/Drive2.pdf).
You can also check out an animated version of a talk by Daniel Green:
httpv://www.youtube.com/watch?v=u6XAPnuFjJc