The actual study link is http://ceepr.mit.edu/publications/working-papers/681 http://ceepr.mit.edu/publications/working-papers/681 but the full text is "for spo

The actual study link is http://ceepr.mit.edu/publications/working-papers/681 http://ceepr.mit.edu/publications/working-papers/681 but the full text is "for sponsors only": > As a benefit to our Associates, the latest Working Papers are embargoed for a period of up to six months before becoming accessible to the public. The list of associates can be found here: http://ceepr.mit.edu/support/associates http://ceepr.mit.edu/support/associates