This document discusses how big data and analytics can provide insights into employee attrition. It notes that the cost of attrition to UK businesses has risen from £42 billion in 2010 to £63 billion in 2013 as attrition rates have increased from 10.4% to 15%. The document then reviews several factors that influence attrition, including macroeconomic conditions, company practices, workforce relationships, job characteristics, and worker characteristics. It suggests that analyzing trends in these areas using large datasets can help employers better understand and manage attrition.