The bias in favour of boys is shrinking in developing countries even as a preference for girls emerges in the rich world https://www.economist.com/briefing/2025/06/05/more-and-more-parents-around-the-world-prefer-girls-to-boys?taid=69dfa80cbd318b0001e83776&utm_campaign=editorial-social&utm_content=discovery.content&utm_medium=social-media.content.np&utm_source=twitter