Decades of declining and sub-replacement fertility has caused the U.S. population to age. The total fertility rate is below replacement even after adjusting for the timing in births, an indication ...

Since the Great Recession, the total fertility rate in the United States has fallen far below the level of fertility necessary for natural growth replacement of the population. Much of the recent ...

World sleepwalking towards social upheaval sparked by extended period of falling births, unless urgent action taken ...

and Jaschinski, I. (2012). Fertility Data for German-speaking Countries: What is the Potential? Where are the Pitfalls? Comparative Population Studies 36(2-3). Lesthaeghe, R. and Permanyer, I. (2014).