The youtube video aptly entitled "Drive: The surprising truth about what motivates us" by theRSAorg is cartoon narrating a speech by Dan Pink.
The speech address the age-old fable that "If you reward something, you get more of the behavior; if you punish something, you get less of it."
He concludes that there are "3 factors that lead to better performance and personal satisfaction: autonomy, mastery, and purpose."
He states that "money is a motivator", but only to the point of "taking the issue of money off the table"... After that point, it actually inhibits (according to his research) performance requiring tasks beyond rudimentary cognitive skill.
He comes to this casual conclusion from a study he found in Cambridge, MA; and Madurai, India.
This is anecdotal evidence, and even though he mentions that the results have been "repeated over and over and over by psychologists, sociologists, and economists" he fails to actually lead us to the replicated studies.
At this point, it is safe to say that perhaps his amassed amount of studies agreeing with him results from a confirmation bias study: one in which a person amasses their own hypothesis and destroys or ignores alternative explanations for the findings.
His confirmation bias is practically observable when he explains his idea for a business model. That is, he already believed what he is presenting to you before he made an objective conclusion.