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I guess this makes the assumption that each woman is impregnated by different men. If 10 women and one man had a TFR of 1.5 the population is still growing no?
by qeternity 8y ago
I guess this makes the assumption that each woman is impregnated by different men. If 10 women and one man had a TFR of 1.5 the population is still growing no?
- steve19 8y agoPopulations usually have close to 50% split, although I think there are usually slightly more woman. Outside of war/post war its unlikely to have a situation where there are 10 woman to each man.
- irrational 8y agoIndia has a history of favoring males, so many females are aborted. You are more likely to see 10 men to each woman.
- ktta 8y ago>You are more likely to see 10 men to each woman So you are saying India's new-born gender divide is 91% men and 9% women? Abortion based on gender is illegal in India. Most (all?) gynecologists in India won't reveal gender due to this until a certain stage (20 weeks) in the pregnancy after which abortion is illegal (requires court order).
- scbrg 8y agoThings that are illegal happen.
- jpatokal 8y agoIllegal it may be, but there are many states in India where the sex ratio for babies is badly out of whack. https://scroll.in/pulse/834701/one-step-forward-two-back-indias-uneven-progress-in-correcting-its-gender-imbalance https://scroll.in/pulse/834701/one-step-forward-two-back-ind...
- mamon 8y agoIf you mean: some weird tribe that has a population of 10 grown up women and one grown up men then yes, any TFR > 1.1 would mean population growth. But in normal circumstances you assume that there is an equal number of men and women in population. Or, to be more precise, you assume 105:100 men:women ratio, because that's what statistics show in most countries. That's why you need TFR slighly higher than 2 to have constant population size.