Book Review: Why Sex Matters: A Darwinian Look at Human Behavior. Bobbi Low. Princeton,NJ: Princeton University Press, 2000. ISBN 0-691-02895-8. 412 pp., $60.00

Population and Environment -     

Book Review: The Ultimate Resource 2. Julian L. Simon. Princeton,NJ: University Press. 1996. pp. 734

Population and Environment -     

Population growth: U.S. and Latin American views

Abstract This article is an attempt at interpretation. As one who has worked professionally both in the United States and in Latin America, I would like to interpret how I see the United States and Latin America responding to the high Latin American population growth rate. This is a personal interpretation and as such, of course, is biassed. It is also a very broad subject to which a few pages of interpretation can hardly do justice. The very generalizations 'the United States' and 'Latin America' lend themselves to misunderstanding. These are not homogeneous areas but contain a variety of forces pulling in many directions. And yet, just because this is such a difficult subject as well as such an important one in the world of to-day, it is perhaps worth while to try to distil some common components which may help us gain a better understanding of the actions of others as well as our own.     

U.S. Hispanics: A demographic and issue profile

This paper highlights sociodemographic characteristics of Hispanics and extrapolates issues attendant to this large and growing segment of American society. Educational, political, and economic issues are considered.This article was presented at the 40th California History Institute sponsored by the Holt-Atherton center for Western Studies, the University of the Pacific, Stockton, California, April 24–25, 1987.     

Erratum to: Diverging Demography: Hispanic and Non-Hispanic Contributions to U.S. Population Redistribution and Diversity

Population Research and Policy Review -     

Contraceptive sterilization in the U. S.: 1965 and 1970

There was an impressive increase between 1965 and 1970 in the prevalence of contraceptive sterilization, an increase that accelerated in the later years of the period and was shared in by virtually all subgroups considered. Among couples in 1970 for whom sterilization had been an option (recognizing that it is a terminal method), about one of every five had chosen this method of contraception. About half of all sterilizations were vasectomies, though vasectomies have outnumbered tubal ligations in recent years. Differentials in prevalence and in increases during 1965–1970 are reported for a number of life-cycle and social variables. In addition, a profile of the contraceptive sterile is presented for recent sterilizations. Significant proportions are relatively young and of low parity at the time of sterilization. In the context of the continued diffusion of the pill and IUD and increases in legal abortion, the net demographic effect of increasing sterilization is regarded as low, though sterilization is an important component of an effective fertility control regime.     

Immigration and environmental emissions: A U.S. county-level analysis

This paper investigates the immigration–environment association using U.S. county-level data, for a subset of counties (N = ~200), and a model inspired by the STIRPAT approach. The analysis makes use of U.S. census data for the year 2000 reflecting U.S.-born and foreign-born populations, combined with county-level data reflecting emissions of CO₂, NO₂, PM₁₀, and SO₂. With a focus on approximately 200 primarily urban counties for which complete data are available, and after controlling for income, employment in the utilities and manufacturing sectors, and coal consumption for SO₂ estimations, few statistically significant associations emerge between population composition and emissions. Counties with a relatively larger U.S.-born population have higher NO₂ and SO₂ emissions. On the other hand, counties with a relatively higher number or share of foreign-born residents have lower SO₂ emissions. Although limited to cross-sectional analyses, the results provide a foundation for future longitudinal research on this important and controversial topic.     

Delayed childbearing in the U.S.: facts and fictions

Between 1970-82, the proportion of 1st births in the US to women 25 and older rose from 19-36% and the proportion of women still childless at ages 25-34 increased by 56% at about the same time. Although a sharp contrast with the baby boom era of the 1950s and 1960s, todays's epidemic of delayed childbearing is similar to patterns earlier in the 20th century. As then, much is due to delayed age at marriage, but baby boomers now in the their late 20s and early 30s are also delaying childbirth after marriage. The trend stems in part from their economic difficulties as they compete in a tight job market caused both by their large numbers and a turbulent economy. But it is also related to women's increasing education and, in turn, increasing opportunities in and commitment to the labor force, which can be expected to encourage a delayed childbearing even after prospects brighten for young people. Although a diverse group, most of today's delayed childbearers are white, highly educated, 2-career couples. Adequate daytime care for preschool children is a prime concern. Although more employers now offer childcare assistance and flexible work schedules to working parents, the juggle between jobs and childraising can be a strain. On the plus side are delayed childbearers' greater maturity and generally higher incomes, which can ease potential problems created by parent-child age differences as their children grow up. Businesses have been quick to respond to the new market of older, affluent, 1st-time mothers. New methods of treating of circumventing infertility and prenatal detection of chromosomal birth defects can now help overcome potential biological problems that may concern women who choose to delay childbearing past age 30.     

Looking back . . . looking forward: addressing the lives of lesbians 55 and older

This study explored the life course experiences of older lesbians and their concerns and needs as they age. Interviews with sixty-two lesbians, age 55 and older, living in the three west coast states, revealed common themes related to coming out, family and partner relationships, sources of support, aging-related concerns, personal accomplishments, and hopes for the future. Implications for research with older lesbians and for appropriate social work practice and service delivery with this aging population are discussed.