Mansions, especially in New York City and New Jersey, are often worth more than $1 million. But they're not always being sold for that much. Economists from the National Bureau of Economic Research explain why.

By Making Sen$e Editor

As the economic crisis continues to reverberate around the nation, troubles in the housing sector remain key to the upheaval -- and many homeowners are facing foreclosure in the interim. Economics experts debate various measures being considered to help homeowners…