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Demographics

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What really predicts fertility? A principled look at country time series data

  • Post author:Emil O. W. Kirkegaard
  • Post published:12. April 2026
  • Post category:Demographics

We have an endless amount of articles trying to show that this or that variable is a plausible causal candidate, and hopefully something we can do something about practically speaking.…

Continue ReadingWhat really predicts fertility? A principled look at country time series data
Read more about the article Who is gaining Danish citizenship?

Who is gaining Danish citizenship?

  • Post author:Emil O. W. Kirkegaard
  • Post published:6. April 2026
  • Post category:Demographics/Immigration

The Danish constitution says: §44 (1) No alien shall be naturalized except by statute. (2) The extent of the right of aliens to become owners of real property shall be…

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Read more about the article Explaining Poland’s fertility paradox

Explaining Poland’s fertility paradox

  • Post author:Emil O. W. Kirkegaard
  • Post published:3. April 2026
  • Post category:Demographics

You have probably seen this map: It regularly goes viral on X with the usual abortion debate to follow. The source is this site, where we can also learn that this…

Continue ReadingExplaining Poland’s fertility paradox
Read more about the article Consequences of racial composition changes in USA 1970-2023

Consequences of racial composition changes in USA 1970-2023

  • Post author:Emil O. W. Kirkegaard
  • Post published:28. March 2026
  • Post category:Criminology/Demographics/Education/Sociology

Some years ago, I gave a good idea of a study to a friend, and he did it. But then he just never published his study anywhere, it's just sitting…

Continue ReadingConsequences of racial composition changes in USA 1970-2023
Read more about the article Dysgenics for whom?

Dysgenics for whom?

  • Post author:Emil O. W. Kirkegaard
  • Post published:27. March 2026
  • Post category:Demographics/Genetics / behavioral genetics/intelligence / IQ / cognitive ability/Psychiatry

Some time ago, we published studies showing that the negative correlation between intelligence and fertility varies by other factors. Specifically, we found that it varies by religiousness and conservatism, in…

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Read more about the article Are dogs good or bad for fertility?

Are dogs good or bad for fertility?

  • Post author:Emil O. W. Kirkegaard
  • Post published:30. January 2026
  • Post category:Demographics

In August last year, I wrote a post about our then new study about people's pet preferences and various human differences: Prior research found that pet preferences and ownership relates…

Continue ReadingAre dogs good or bad for fertility?
Read more about the article Government family spending does not predict fertility rates, or does it

Government family spending does not predict fertility rates, or does it

  • Post author:Emil O. W. Kirkegaard
  • Post published:18. October 2025
  • Post category:Demographics/Economics

Fertility rates are terrible in every good country except for Israel. Why is that? Well, maybe we just don't spend enough money on this. Maybe it is too expensive to…

Continue ReadingGovernment family spending does not predict fertility rates, or does it
Read more about the article Who has how much dysgenics? The worldwide picture

Who has how much dysgenics? The worldwide picture

  • Post author:Emil O. W. Kirkegaard
  • Post published:7. September 2025
  • Post category:Demographics/Forecasting/intelligence / IQ / cognitive ability

In 2024, Seb Jensen published a report over at Hanania's CSPI (Are We Getting Dumber?) summarizing his findings concerning the speed of global dysgenics. Due to various reasons, the formal…

Continue ReadingWho has how much dysgenics? The worldwide picture

What doesn’t explain the post-COVID fertility decline?

  • Post author:Emil O. W. Kirkegaard
  • Post published:13. July 2025
  • Post category:Demographics/Medicine

I've been writing about fertility for a while. Of recent interest is the COVID or post-COVID fertility decline. Birth Gauge compiles the most up to date TFR (total fertility rate)…

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Read more about the article Female education and fertility rates

Female education and fertility rates

  • Post author:Emil O. W. Kirkegaard
  • Post published:7. July 2025
  • Post category:Demographics/Education/Forecasting

This figure has been floating around on X the last few days: As in my own example, the copycat gained more attention than the earlier post (July 3rd 1.2M views,…

Continue ReadingFemale education and fertility rates
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