| http://www.w3.org/ns/prov#value | - Likewise, one-quarter of sibling pairs in the Study of American Families diverge substantially in terms of the prestige of their jobs. (Substantial means the difference between a professional such as a lawyer or businessman, on the one hand, and a salesclerk or blue-collar worker on the other.) In the PSID, the sibling correlation in 2001 occupational prestige is only .225 for sisters, .302 for
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