Search Results for abstract

...Voram Ben-Porath Abstract This paper investigates the relation between fluctuations in fertility and in economic activity in Israel over the period 1950–1970. The paper opens with some comments on the theoretical basis for expecting procyclical behavior of fertility. This is followed by analysis...

...G. Edward Stephan; Karen H. Stephan Abstract As regional population density increases territorial units tend to subdivide. For maximum societal time-efficiency the slope relating the logarithms of unit areas to those of unit densities should be −2/3. When boundaries become fixed, however, observed...

...Douglas S. Massey; G. Edward Stephan Abstract Recent studies have found size of territorial units to vary inversely with population density, the only exception to this regularity being Great Britain, where size and density were found to be unrelated. The present research accounts for this anomaly...

...K. B. Pathak; C. V. S. Prasad Abstract A model to estimate adolescent sterility among married women is presented using the principle of convex combination of two or more probability density functions. 12 1 2011 © Population Association of America 1977 1977 Density Function...

... Summary , as cited in the Statistical Abstract of the United States: 1965 , p. 210. 3 United States Bureau of the Census, U.S. Census of Population: 1960 , Final Report PC (1)-1C, table 112. 4 For hotel receipts, see data from the 1958 Census of Business in the Statistical Abstract of the United...

...Robert A. Stairs Abstract A generalized formulation of various kinds of averages of population density is given. 8 1 2011 © Population Association of America 1977 1977 Population Density Reference Statistics Census Data Social Stress Desert Area An erratum...

...Robert T. Michael; Victor R. Fuchs; Sharon R. Scott Abstract The growth in single-person households is a pervasive behavioral phenomenon in the United States in the post-war period. In this paper we investigate determinants of the propensity to live alone, using 1970 data across states for single...

...Arleen Leibowitz; Jacob Alex Klerman Abstract Employment of married mothers with preschool children rose dramatically between 1971 and 1990. Using CPS data, we find that about one-fifth of the increase in labor supply can be attributed to changes in mothers’ demographic characteristics (age...

...S. Mitra Abstract When the force of mortality is reduced by a constant fraction 0 at every age, the relative increase in life expectancy e (0) can be measured by δ H , where H is determined by the l (a) values of the life table. Although H is not easily reducible in terms of the well-known life...

...Robert J. Myers Abstract At times, persons have been reported as living to extremely advanced ages such as 130, or even higher (McWhirter and McWhirter, 1977, p. 26; Medvedev, 1974; Merrill, 1976). However, controlled studies of closed groups like Civil War veterans (Myers and Shudde, 1955) have...

...Barbara S. Janowitz Abstract Ekanem has shown that variations in socioeconomic development are associated with differences in birth rates. However, he has made no attempt to determine if his regression equations can be used to predict trends in fertility. This note shows that, using Ekanem’s data...

...D. Peter Mazur Abstract Because the 1970 Soviet Union census does not provide information on the age structure of men and women separately by sex and according to their ethnic affiliation, the 1959 USSR census data serve as the basis to infer knowledge about ethnic fertility. The model takes...

...P. Cerone; A. Keane Abstract The asymptotic birth rate for a one-sex population in which the net maternity function changes to one of bare replacement was first discussed by Keyfitz and has since been studied by several authors. The present generalization allows for a time dependent transition from...

...J. Richard Udry Abstract A comparison of the number of births in New York City nine months after the Great Blackout of 1965 with comparable periods for the previous five years shows no increase in births associated with the blackout. 26 1 2011 © Population Association of America 1970...

...Allan G. Hill Abstract Kuwait has experienced a dramatic rise in national income since 1945, and its material standard of living is as high as that of any country in the world. The national population (Kuwaitis) is a stable and almost closed population comprising 45 percent of the total population...

...Donald B. Pittenger Abstract It is suggested that a useful component of a fertility simulation would be proportions of females sterile by age. Data on this phenomenon are rather limited, but they indicate that proportional sterility may not easily be described by a simple function. We propose...

...Robert J. Myers Abstract This note reports on an interesting example of reverse heaping of ages for data from the Saudi Arabian social insurance system. Peaks occur for the number of workers at ages corresponding to years of birth ending in zeroes and fives, while there are troughs at such ages...

...Noreen Goldman; Graham Lord Abstract Using formulas which measure life cycle characteristics of widowhood as a function of life table survivorship and age at marriage, we illustrate changes in patterns of widowhood and widowerhood since 1950, as well as differences by race, by age of bride...

...G. Edward Ebanks; P. M. George; Charles E. Nobbe Abstract This paper examines the role of emigration in the recent fertility declines which have occurred on the island of Barbados. Barbados with a history of over two centuries of out-migration has experienced in the period 1951–1970 very...

...Robert D. Retherford; Hassan Eini-Zinab; Minja Kim Choe; Naohiro Ogawa; Rikiya Matsukura 1 3 2013 12 4 2013 © Population Association of America 2013 2013 Erratum to: Demography DOI 10.1007/s13524-012-0179-8 In the fourth line of the abstract of this article, “(TRF...