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The article comments on a previous article related to fertility crisis in modern societies that appeared in the March 2004 issue of the journal Population Studies. Social researchers Francesco Billari, Tomas Frejka, John Hobcraft, Miloslav Macura and Dirk J. van de Kaa broadly endorse authors' paper, while adding valuable supplementary and complementary material. Authors concur with most of the regional and technical elaborations they propose. However, authors take issue with some of the points raised by van de Kaa and Hobcraft, most of which refer to authors' article. Authors assume that no one regards the Western demographic transition over the last century or two as being independent of the Industrial Revolution, as being something that would have happened if incomes had stayed at eighteenth-century levels. If the world passes, in little more than two centuries, from being one of high fertility with a potential for rapid growth as mortality falls, to one where global population is declining then researchers who do not seek overarching explanations may be little heeded.

This paper addresses the emerging interest in the relationship between homeostatic models and demographic transition theory. Firstly, it considers the nature of fertility measurement and concepts. The paper then goes on to examine evidence from pre-transitional societies in which demographic regimes have been most thoroughly studied, summarizing what is known about their character. The nature and current status of homeostatic theories in demography and the institutional supports of pre-transitional regimes are considered. The implications of the findings on pre-transitional populations for transition theory are then discussed. The paper concludes with suggestions for ways in which studies of transition within a framework of homeostatic regimes could be developed. [ABSTRACT FROM AUTHOR]

This paper examines the impact of the demographic transition upon the potential supply of, and demand for, family support for the aged in Australia. Using census and survey information on population cohorts entering old age, comparisons are drawn concerning their surviving issue, household composition and family membership. Long-term changes in fertility are shown to have had only a small impact upon the supply of potential carers among relatives and, although the demographic transition has led to a more universal inclusion of old people in family networks, there have not been major changes through time in the proportions living in extended family households. Short-term changes, however, such as low fertility during the 1930s, have caused disordered cohort flow, with the result that current generations of the elderly are members of deprived cohorts in terms of their access to family support. [ABSTRACT FROM AUTHOR]

Between 1920 and 1940, fertility dropped below replacement level in many Western countries. In today's scholarly literature, the drop is usually explained as a temporary reaction to the exceptional conditions of the inter-war period. This paper confronts that interpretation with the interpretations offered by scholars writing between the wars. According to leading demographers of the time, low fertility was due not to war or economic crisis, but rather to processes that now tend to be associated with the Second Demographic Transition, including secularization, individualization, rising consumerism, and women's emancipation. Since these were seen as structural features of modernization, most inter-war scholars argued that subreplacement fertility would remain an obstinate feature of modern society for an extended period of time. [ABSTRACT FROM AUTHOR]

Inadequate data and apartheid policies have meant that, until recently, most demographers have not had the opportunity to investigate the level of, and trend in, the fertility of South African women. The 1996 South Africa Census and the 1998 Demographic and Health Survey provide the first widely available and nationally representative demographic data on South Africa since 1970. Using these data, this paper describes the South African fertility decline from 1955 to 1996. Having identified and adjusted for several errors in the 1996 Census data, the paper argues that total fertility at that time was 3.2 children per woman nationally, and 3.5 children per woman for African South Africans. These levels are lower than in any other sub-Saharan African country. We show also that fertility in South Africa has been falling since the 1960s. Thus, fertility transition predates the establishment of a family planning programme in the country in 1974. [ABSTRACT FROM AUTHOR]

Population momentum is the ratio of a population's ultimate size after a demographic transition to its initial size before the transition. For an instantaneous drop to replacement fertility, Nathan Keyfitz found a simple expression MK for the momentum. However, as Keyfitz pointed out, 'no one thinks that any country will drop immediately to stationary reproduction patterns'. We present results concerning the momentum of a population whose demographic transition is completed within a finite time. First, we provide an exact analytical formula for such a population's momentum. Second, for rapid fertility transitions, we obtain a simple exact expression for momentum that reduces to Keyfitz's MK if the transition is instantaneous. We show, by example, that our simpler formulae are accurate approximations to population momentum for transitions that take as long as 100 years. Finally, we show that the speed of fertility decline makes a substantial difference to population momentum. [ABSTRACT FROM AUTHOR]

Before the demographic transition in Thailand, fertility was high, but not uniformly so. As in other pre-transition settings, Thai fertility responded to pressures and opportunities created by socioeconomic structure and land availability. Drawing upon provincial data from the 1947 and 1960 censuses of Thailand, we find a strong 'frontier effect' on Thai fertility in the 1950s. Fertility was higher in sparsely settled frontier provinces and lower in provinces with higher population density relative to cultivatable land. This finding is robust and holds up with controls for agricultural employment, land quality, and the sex ratio (an indicator of sex-selective migration). The effect of population pressure lowers the likelihood of marriage and of marital fertility. The findings from Thailand are consistent with the research of Easterlin on the nineteenth century United States and with other pre-transition societies. We suggest how demographic transition theory might be broadened to include fertility dynamics in pre-transition societies. [ABSTRACT FROM AUTHOR]

The article discusses the trends of human fertility rates in migrants and non-migrants in Thailand. The rising levels of urbanization and increasing concentration of population in big cities due to migration from rural areas has imparted effect on fertility patterns. Thailand had experienced highest growth rate of population with rapidly changing demographic situation. But it experienced a decline in fertility by 1970s. The fertility was found to be lower for migrants than for non-migrants, and it was particularly the feature of migrants to Bangkok. The reasons for lower rate of childbirth in migrants are found in acculturation to life in a new environment and the stress of adaptation.