Is There A Case for a "Second Demographic Transition"? Three Distinctive Features of the Post-1960 U.S. Fertility Decline

Dramatic fertility swings over the last 100 years have been the subject of large literatures in demography and economics. Recent research has claimed that the post-1960 fertility decline is exceptional enough to constitute a "Second Demographic Transition." The empirical case for a Second Demographic Transition, however, rests largely on comparisons of the post-1960 period with the baby boom era, which was itself exceptional in many ways. Our analysis of the U.S. instead compares the fertility decline in the 1960s and 1970s to the earlier 20th century fertility decline, especially the 1920s and 1930s