As recently as 1966, Canada's total fertility rate (TFR) was above that of the United States. At that time, both countries had TFRs well above 2.1, the level needed to replace the population. (The TFR is the number of children each woman would bear during her lifetime, on average given current fertility patterns.) Since then, however, Canada's TFR has tumbled to 1.5 or below, while the birth rate in the United States, although it has also declined, is near replacement level.
In 2001, Statistics Canada produced an in-depth report on demographic trends in Canada and the US, focusing on the divergent fertility trends in the two countries.
The gap between the two countries, amounting to approximately one-half child per woman in favour of the United States, amounts to what could be called, in practical terms, Canada’s fertility deficit.
Demographic experts in Canada see no reason to believe that the average fertility of Canadian women will rise significantly within the next several decades; but American demographers foresee a probable increase in the US TFR to around 2.20 by mid-century.
As Figure 1, above, shows, fertility rose sharply in both the US and Canada in the immediate post-war period, as it did in many Western countries. The baby boom reached its height in 1957, when the TFR reached 3.91 children per woman in Canada and 3.77 in the US. Fertility then declined steadily, falling below replacement level in the early 1970s. In the early 1980s, the American birth rate began to recover lost ground; in Canada, however, the decline continued.
Can the different fertility trends in the two countries be explained by differences in the racial-ethnic composition of the populations? Birth rates have historically been higher among black and Hispanic groups, and they form a growing proportion of the American population. Figure 2, below, shows that this hypothesis can explain only a part of Canada's fertility deficit.
The fertility of black American women rose during the late 1980s and then declined in the late 1990s, whereas fertility of white women rose slowly but steadily throughout the period. By the end of the 1990s, fertility among white American women was closer to that of black Americans than to Canadian women.
Improved data collection beginning in 1989 has made it possible to separate Hispanic women from other white women in the US. Thus, Figure 2 shows that all American racial-ethnic groups experience much higher fertility than do Canadian women.
For 1999, a gap of 0.3 children is observed between the TFR of Canadian women and that of non-Hispanic white American women (1.85 children per woman), the group exhibiting the lowest fertility rate in the United States. Therefore, the ethnic make-up of the U.S. population does not entirely explain the differences in fertility observed between the two countries. At most, the higher fertility of black or Hispanic American women would appear to explain 40% of the difference observed in 1999. [footnote omitted]
By examining fertility rates of particular age groups, the researchers found that the difference in overall TFR is concentrated among younger women. About 30% of the difference can be attributed to lower fertility among Canadians aged 15-19, and another 60% to women aged 20 to 29.
Is fertility lower in Canada because Canadian women do not want to have as many children as American women do? Survey data are available to shed light on that question. Woman in many countries are periodically surveyed about how many children they want or intend to have. The findings show that Canadian and American women intend to have approximately the same number of children.
Canadian women of childbearing age (15 to 44 years of age) reported intending to have an average of 2.22 children, a number entirely comparable to that reported by American women (2.19 children)
Differing intentions regarding overall number of children therefore do not explain the fertility discrepancy. On average, then, American women achieve their desired number of children, whereas Canadian women do not.
(The study also mentions that, among all the countries that have gathered data on intentions to have children, Canada has one of the largest gaps between intentions and actual number of children.)
The researchers looked at several other factors potentially affecting fertility, including contraception, abortion, marriage and cohabitation, labour market conditions, and economic policies vis-à-vis the family. None of these wholly accounts for Canada's fertility deficit, but a combination of factors may explain a good deal.
Favoured by earlier marriage, a greater propensity for legal marriage (which is more stable and more fertile than common-law union, an option that is more popular with Canadians), and easier entry into the labour market, in particular for young males, young American women aged 20 to 29 have more children than young Canadian women of the same age.
The Statistics Canada study was published in 2001, based on data for the period ending 1999, but was only made available for free online earlier this week. More recent data show that, in 2004, Canada's TFR was 1.53 and that of the United States was 2.05—both about where they were in 1999.
Source:
Belanger, Alain, and Genevieve Ouellet, 2001. "A comparative study of recent trends in Canadian and American fertility, 1980-1999". Report on the Demographic Situation in Canada, 2001. Statistics Canada catalogue no. 91-209-XIE2001000, pp. 107-136 (pp. 121-150 of pdf document).
http://www.statcan.ca/english/freepub/91-209-XIE/91-209-XIE2001000.pdf (accessed 25 September 2006)
Statistics Canada earlier this week made available online at no charge back issues of its annual publication, "Report on the Demographic Situation in Canada" for the years 1995 through 2002. They can be accessed here.
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