With all the talk defending labor arbitrage, with its "Why pay more?" philosophy dominating leadership thinking these days, it's time to review the research on employee management best practices that answers that question. IW's research repeatedly -- and convincingly -- shows that top performing manufacturers value their plant-level employees as assets to be invested in, not costs to be cut. As knowledge workers who deliver high-pay-off ideas if given the chance, not just interchangeable cogs in the machine. The data also suggest that if your employees are not providing the company with a competitive edge, the problem might not be with the employees, but with your leadership. IW's Best Plants Statistical Profile and the IW/MPI Census of Manufacturers together provide rigorous data that allow us to compare the practices of high performing plants with ordinary ones and -- more important -- to show which leadership practices correlate with world-class performance. Findings include the following: