This lively RSA Animate (10 mins video), adapted from Dan Pink’s talk at the RSA, illustrates the hidden truths behind what really motivates us at home and in the workplace.
One key lesson is that more pay does not motivate, it just needs to be enough to take the money factor off the table.
Some acquired wisdom from a CEO about this topic:
http://www.fastcompany.com/1772484/want-to-keep-your-best-employees-its-not-about-the-money