According to a 2013 Gallup study, unhappy workers cost the U.S. economy as much as $550 billion. That’s because workers who aren’t feeling their best are less productive than those who consistently wake up on the right side of the bed.

In a piece about the study’s implications, Entrepreneur contributor Catherine Clifford encourages bosses to do more to motivate down-in-the-dumps employees. She notes that it’s “not rocket science.”

“Workers want to be recognized when they do good work, have their personal life respected and have friends at work,” she writes.

Clifford identifies three important facets of what’s increasingly become a core concern for managers and business owners: employee motivation.…