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Systems come back to equilibrium (eventually)

Discover the surprising turnaround in the sex ratio at birth in India, shedding light on sex-selective abortion in India and its implications.

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The daughter’s return: A glimmer of hope in the sad tale of sex-selective abortion in India:

Now, however, comes evidence that India may in fact be succeeding. In a pair of articles in the Indian Express, Surjit Bhalla, an economist, and Ravinder Kaur, a sociologist, use a different set of figures to get a different result. On the basis of the national sample surveys (NSS), they calculate that India’s sex ratio at birth swung from 924 females per 1,000 males in 2004-05 to 977 in 2011, a stunning turnaround in favour of girls.

I hear about the problem of sex bias through selection (either abortion or greater neglect of female babies) a lot in the press. There are a few issues which the mainstream seems rather ignorant of, both theoretical and empirical. First, there is the Trivers–Willard hypothesis. It offers a strong theoretical rational for why high status lineages are ...

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