This article summarizes some of the research, unfortunately no direct links to papers (should be google-able via researcher names):

http://www.slate.com/articles/business/moneybox/2011/05/your...

Found link to the commute-divorce paper, Erika Sandow Umeå University "On the road. Social aspects of commuting long distances to work.": http://umu.diva-portal.org/smash/get/diva2:415050/FULLTEXT01

I can't seem to find it now, but I seem to recall that dropping from 1 hour to 20 minutes was worth a 30-40 pct reduction in pay. http://www.quora.com/What-studies-have-been-done-on-the-effe...

An interesting article from the BBC: http://www.bbc.co.uk/blogs/thereporters/markeaston/2011/02/h...

This article seems to have some links to papers: http://lesswrong.com/lw/7am/rational_home_buying/