Bell, David E., Damien P. McLoughlin, and Mary Shelman. "K&N's: Health and Happiness for Pakistan." Harvard Business School Case 512-002, December 2011. (Revised October 2015.) ...

A recent study published in Management Science finds that happiness increases productivity. The effects are large, as well. Each one-unit increase in happiness (on a scale of 0-10) led to a 12% ...

You remember that "money can't buy happiness" line? Turns out it can, but — plot twist! — only up to about $75,000 a year. Or so the experts used to say. When I first heard about this ...