"I tried to come up with a private market solution."

Many urban problems simply don't yield to "free market" solutions.

Low understanding of the concept of "encouraging free market solutions".

For other investors, however, this would be too far from a market solution.

These economists want both the public and private sectors to adopt a market solution of sorts that calls for getting the financial incentives right.

An impediment to this market solution is the tradition of paying all teachers on a common scale.

"I'd say there's no one silver bullet, but there are market solutions."

Conservatives typically argue for free market solutions, with less government restriction of the private sector.

He favors reforming the current system "through free market solutions".

"Clearly there are functions that don't lend themselves perfectly to free market solutions," he said.