(posted from the Harvard Business Review, Gretchen Spreitzer and Christine Porath) When the economy’s in terrible shape, when any of us is lucky to have a job—let alone one that’s financially and intellectually rewarding—worrying about whether or not your employees are happy might seem a little over the top. But in our research into what makes for a consistently high-performing workforce, we’ve found good reason to care: Happy employees produce more than unhappy ones over the