himaginary https://blog.hatena.ne.jp/himaginary/ himaginary’s diary https://himaginary.hatenablog.com/ 経済 人口 社会 というNBER論文（原題は「The Downside of Fertility」）をノーベル賞経済学者のClaudia Goldin（ハーバード大）が上げている（ungated版）。 以下はその要旨。 The fertility decline is everywhere in the world today. Moreover, the decline goes decades back in the histories of rich countries. Birthrates have been below replacement in the U.S. and Europe since… 190 <iframe src="https://hatenablog-parts.com/embed?url=https%3A%2F%2Fhimaginary.hatenablog.com%2Fentry%2F20250925%2FThe_Downside_of_Fertility" title="出生率のダウンサイドリスク - himaginary’s diary" class="embed-card embed-blogcard" scrolling="no" frameborder="0" style="display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;"></iframe> Hatena Blog https://hatena.blog 2025-09-25 23:59:00 rich https://himaginary.hatenablog.com/entry/20250925/The_Downside_of_Fertility 1.0 100%