The Answer to Slow Productivity Growth: Shorter Workdays

Economists have been largely puzzled by the sharp slowdown in productivity growth over the last decade. (Sorry, robot fans, they aren't taking jobs yet.) Anyhow, productivity growth has fallen from nearly 3.0 percent annually from 1995 to 2005, to less than 1.0 percent over the last decade. We've actually seen negative growth over the last two years.

Anyhow, there are no widely accepted explanations for this sharp falloff. (My story is that in a weak labor market with workers desperate to fin...