Although our results point to a significant role for genetic variation, perhaps the most striking finding is the most obvious one – about the importance of non-shared environment. The largest sibling correlation in earnings that we estimate is a 0.36 correlation for monozygotic twin brothers. Even though these brothers have identical genes and, according to our preferred model, experience even more similar environments than other sibling pairs do, an estimated 64 percent of their earnings variation is explained by neither genetic nor environmental resemblance. In other words, much and perhaps most of earnings variation in Sweden stems from environmental factors that are not shared even by monozygotic twins.
2:58 am on Dec. 13, 2006 | Joined April 2004 | 1141 Days Active Join to learn more about osmoticdespairWales | Label FreeFemale | 30136 Posts | 43805 Points
621 users online 
174550 members 
You have 1 new message.
Patron
Although our results point to a significant role for genetic variation, perhaps the most striking finding is the most obvious one – about the importance of non-shared environment. The largest sibling correlation in earnings that we estimate is a 0.36 correlation for monozygotic twin brothers. Even though these brothers have identical genes and, according to our preferred model, experience even more similar environments than other sibling pairs do, an estimated 64 percent of their earnings variation is explained by neither genetic nor environmental resemblance. In other words, much and perhaps most of earnings variation in Sweden stems from environmental factors that are not shared even by monozygotic twins. 
