Wharton research on emotion in the workplace:

Employees’ moods, emotions, and overall dispositions have an impact on job performance, decision making, creativity, turnover, teamwork, negotiations and leadership. … employees’ emotions are integral to what happens in an organization, says Professor Barsade, who has been doing research in the area of emotions and work dynamics for 15 years.

Everybody brings their emotions to work. You bring your brain to work. You bring your emotions to work. Feelings drive performance. They drive behavior and other feelings.

Think of people as emotion conductors.

–Sigal Barsdale
Managing Emotions in the Workplace
Do Positive and Negative Attitudes Drive Performance?