Internal Survey: Increase employee engagement with mobile American businesses lose $550 billion a year due to disengaged employees. A new survey says mobile could help reengage those workers, and therefore recoup the lost revenue. By Kristin Long@KristinMLongMay 23, 2014 SHARE To read the full story, log in. Become a Ragan Insider member to read this article and all other archived content. Sign up today Already a member? Log in here. Learn more about Ragan Insider.