Shinji, YAMAGATA; Makiko, NAKAMURO; Tomohiko, INUI - Research Institute of Economy, Trade and Industry (RIETI) - 2013
This study examined the extent to which the inequality of opportunity exists in Japan, using a classical twin design. Participants were 1,006 working, male twins (738 identical and 268 fraternal twins; age 20–60) recruited via a web-based survey. Participants responded to the questions of...