But many frown on using extra space in single-family homes for housing.

The cost of rent in cities like L.A. or New York stands in the way of many people earning higher wages. Author Matthew Yglesias says the issue could be solved if cities loosen building regulations.

New Haven attracts families to a new mixed-income community with a popular lottery.

Think affordable housing is just a matter of number crunching and government regulation? How about sex? OK, so maybe not just "sex," but in Egy…

Over the next month, while David Brancaccio is doing stories from Egypt and the United Arab Emirates, the Economy 4.0 blog will be looking at the…