The direction of fertility in the United States

"The genesis of this conference was the Census Bureau's release of population projections for the United States in January 2000. These showed the possible future population in great detail for each year out to 2100: (a) by single year of age to 100 plus, (b) by sex, (c) by four race groups, (d) by Hispanic and non-Hispanic, and (e) by foreign-born and native. Innovations in this product included: (a) dynamic forecasts of migration, (b) use of the Lee-Carter approach to project life expectancy, (c) incorporation of both a "true" and a "census-level" of undocumented migration, and (d) creation of projections by nativity. The publicity for this document centered around the finding that the U.S. population would double during the new century, reaching almost 600 million in size. There was very little feedback from any group about the results or the methodology. However, some experts did express concern about the fertility assumptions and methodology."