This document is a summary of a global survey conducted by PricewaterhouseCoopers on behalf of the World Federation of Personnel Management Associations regarding human resources challenges faced in the past, present, and future. The survey found that the top challenges currently faced globally are change management, leadership development, and measuring HR effectiveness. Three years ago the key challenges were change management, compensation, and leadership development. Organizational effectiveness is expected to be a major challenge in the next three years.