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Background: Intermittent severe energy restriction (SER) can induce substantial weight loss, but the appetite regulatory responses to SER are unknown and may dictate long-term dietary adherence.
Testosterone, which induces sexual differentiation of the male fetus, is believed to transfer from males to their littermates in placental mammals. Among humans, individuals with a male twin have ...
We use data from the earlier and later cohorts of the NLSY to estimate the effect of marriage and childbearing on wages. Our estimates imply that marriage lowers female wages 2–4 percent in the year o...

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