These talks about efficiency all discuss how people can be more productive in the workplace. This specifically refers to employees being well-organized, competent and not wasteful of time or resources.
Andrew Tarvin's work humor talk discusses efficient usages of comedy. He explains how even though most see humor and productivity at the opposite ends of a spectrum, combining the two can actually lead to greater success. In another seemingly counter-intuitive talk, Arianna Huffington explains how sleep increases productivity and can be used for self-improvement. The journalist talks about how sleep is beneficial both for future leadership as well as health and wellbeing. In a similar vein, Shaun Achor analyzes the effects of happiness and positive thinking on potential and business.
The talks about efficiency indicate successful businesses need to appeal not just to the skills of their workers, but to their wellbeing too.
42 Talks About Efficiency
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The Importance of Productivity
Small Steps to Success
Successfully Executing Ideas
The Problem With Rewards