The world inside Mark Zandi's computer model feels pretty familiar. It's full of people who are worried about the economy. Their homes are being foreclosed on. They're paying more for gas. Something like 13 million of them can't find jobs.
One of the primary issues at the heart of the the Chicago teachers' strike is whether student test scores should be used to evaluate teachers and determine their pay. Mayor Rahm Emanuel is pushing that approach, as are other officials around the nation.
But many teachers insist that it's inherently unfair to grade their teaching based on their students' learning.