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Thomas Spoorenberg

Demographic Analysis Section, Population Division, Department of Economic and Social Affairs, United Nations, New York, USA.
Fertility and reproduction

Reproductive life concentrated into ever-shorter windows*

July 13, 2026 Thomas Spoorenberg
Fertility, Reproduction, woman

Demographers have long tracked how many children women have and when. But how widely fertility is spread across reproductive ages has received comparatively little attention. Thomas Spoorenberg introduces a simple … Read more

Fertility and reproduction

Fertility postponement is not a universal correlate of fertility decline

February 23, 2026February 23, 2026 Thomas Spoorenberg and Vegard Skirbekk
Fertility

Worldwide, the path leading to delayed fertility is more complex than it may appear at first sight. Thomas Spoorenberg and Vegard Skirbekk offer a few keys to better interpret current … Read more

Fertility and reproduction

The role of mortality in fertility transition studies

October 13, 2025October 13, 2025 Vegard Skirbekk and Thomas Spoorenberg
Fertility, Mortality

Vegard Skirbekk and Thomas Spoorenberg* advocate the combined use of fertility and mortality information, or net reproduction, when discussing fertility levels and trends, both in developing and in developed countries. … Read more

Fertility and reproduction

Concentration of reproduction in developing countries 

January 28, 2025January 27, 2025 Thomas Spoorenberg
Children, Fertility, Reproduction

Thomas Spoorenberg* updates earlier studies on the increased concentration of reproduction as fertility declines, a trend that is now also apparent in developing countries. When discussing population trends, demographers often … Read more

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Latest posts

  • Health around the time of first birth matters for future fertility
  • Estimating years lived across racial categories in Brazil*
  • Violence begets violence. Evidence from the Nigerian Civil War (1967–1970)
  • Reproductive life concentrated into ever-shorter windows*

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