It's interesting to look at some of the reader comments to the NY Times article about the rich being more likely to default on their mortgages. A lot of them are aghast that a mortgage might not be full recourse–that one can walk away and have no personal liability. What happened to one's word being their bond, honor, etc?
Since the onset of the mortgage crisis, some commentators (starting with Martin Feldstein in 2008) have been discovering to their horror that a lot of mortgage lending is nonrecourse. They think this situation is an invitation to moral hazard and argue that we should do away with nonrecourse mortgages and otherwise punish strategic defaulters (without ever saying how we identify a strategic default–not everyone who walks away from an underwater property is a strategic defaulter…) Putting aside the issue that a lot of mortgages are recourse, I don't think these commentators have fully thought through the implications of doing so.
