Principal Knowledge Center

The latest insights from our experts on attitudes, behaviors and trends that impact long-term financial security. Thought leaders from across the globe provide data analysis, research and perspective on the economy, investment management, retirement security and more. 

  • Our thoughts on recent market events

  • The sweet spot

  • The final indignity

  • Riddle me this

  • All good things must come to an end

  • Could the curve steepen?