Why does Facebook motivate the productivity of  employees?

* Hướng dẫn giải

Dẫn chứng: "Short and unobtrusive breaks, such as a quick surf on the Internet, enables the mind to rest itself, leading to a higher net total concentration for a day's work, and as a result, increased productivity," said Brent Coker of the department of management and marketing at the University of Melbourne in  Australia.