Motivation

Motivation is a psychological feature that arouses an organism to act towards a desired goal and elicits, controls, and sustains certain goal-directed behaviours. It can be considered a driving force; a psychological one that compels or reinforces an action toward a desired goal. For example, hunger is a motivation that elicits a desire to eat. Motivation is the purpose or psychological cause of an action. 

Monetary rewards (typical motivation schema in large organisation) work well as incentives for tasks involving only mechanical skills. But once task call for even rudimentary cognitive skill larger reward leads to poorer performance.

For tasks requires conceptual and-or creative thinking the monetary rewards work a different way
 * if people are not paid enough they'll be not motivated
 * once people are paid enough to take the money issue off the table there are 3 factors leading to better performance
 * autonomy (desire to be self directed)
 * mastery (urge to get better - and it is satisfying; this bring FOSS and all sort of volunteering - Linux, Apache, Wikipedia ...)
 * spelling to: challenge mastery & making a contribution
 * (transcendent) purpose