Opening Belz, April 22

Which cities sleep in, and which get to work early – FiveThirtyEight
Why Tyler Cowen is not persuaded by Piketty's argument – Marginal Revolution*
FAA head visits strained Williston airport – Associated Press
Harley-Davidson's 1Q earnings are up 22 percent – Journal Sentinel
A bit of a renaissance going on in Dayton's Bluff – Pioneer Press
Is Naperville becoming a hot spot for new college graduates? – Chicago Tribune
America's middle class is no longer world's richest – NY Times
Rags to riches to rags: income groups are not static – NY Times
Deere & Co.'s Waterloo plant manager headed for Moline – Courier
More Italian women are choosing not to have children – WSJ