The Greatest Management Principle in the World - book by Michael LeBoeuf - blog by Karl Janowski
"The things that get rewarded get done!"
I haven't read this book but the quote has come up in a bunch of my reading. For right now I'll paste a link to a book summary here.
http://my.fit.edu/~dclapp/sectb.htm#grtst
Hopefully I'll get to reading this book.