" Of all the social ties we have at work, the boss/employee relationship, what Daniel Goleman has cleverly termed a “vertical couple,” is the single most important social bond you can cultivate at work. Studies have found that the strength of the bond between manager and employee is the prime predictor of both daily productivity and the length of time people stay at their jobs. "

― Shawn Achor , The Happiness Advantage: The Seven Principles of Positive Psychology That Fuel Success and Performance at Work