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1.
This study examines population flows from Sydney and other regions to perimetropolitan and coastal areas of New South Wales, the two main foci of the population turnaround since 1971. It uses census internal migration statistics for the five intercensal periods between 1971 and 1996, and estimated resident population statistics between 1997 and 2000. Fluctuating trends are described with respect to variations in age structures of migration flows and net migration gains by SLAs in coastal areas over time. Evidence of fluctuating trends is evaluated in relation to population structure change and local socio-economic multipliers in turnaround areas. The turnaround is far mor than a net migration gain from large metropolitan areas; it is also associated with interregional migration which avoids metropolitan areas, and which is at least in part environment- and amenity-related. The experience of some other countries, such as the USA where net migration reversals in population turn-around regions have occurred, has not been replicated in Australia. While elements of explanation for the complex cumulative causation process of the population turnaround in Australia are discussed, including the issues of fluctuating or cyclical trends, much more understanding of the economic and social factors involved is required.  相似文献   

2.
This paper presents the results of an attempt to determine, through the use of demographic analysis, the approximate magnitude of the resident illegal alien population in the United States. The method described is the comparative analysis of trends in age-specific death rates in the United States and selected States, 1950 to 1975. The procedure depends on two assumptions: (a) that few or no illegal aliens are included in decennial census counts or current population estimates; and (b) that the reported statistics on deaths include deaths to all or nearly all illegal aliens. If the illegal alien population has increased by several million since 1970, then death rates in geographic areas where illegal aliens are most concentrated should show substantial excesses over the rates for the remainder of the country. A roughly similar downward trend in the death rates of all age groups since 1970 in all areas of the United States is apparent and hence does not support the view that many millions of illegal residents (perhaps over 6 million) are living here. However, the finding of a persistent deviation in the death rate trend for 10 selected States since 1960 for whites males, ages 20 to 44, and for no other group, suggests that the deaths of illegal aliens are being recorded in our vital statistics system. A range of estimates of the illegal alien population based on this analysis is presented and compared with the results of other studies.  相似文献   

3.
Reported in tabular form are population statistics published by the Institute for Population and Social Research, Mahidol University, in Thailand, as of July 1, 1999. The three objectives of the table were 1) to present the most recent estimates of relevant population numbers and vital rates twice a year, 2) to provide the most accurate demographic estimates possible through the use of standard techniques of demographic analysis, and 3) to disseminate the demographic data to Thailand, and international researchers and planners. The table shows statistics on the following elements: total population; population by sex; population in urban and rural areas; population by region; population by age group; crude birth and death rates; natural growth rate; infant mortality rate; life expectancies at birth and at 60 years and over; total fertility rate; contraceptive prevalence rate; and median age. A new basis for age estimates is also presented.  相似文献   

4.
The study addresses itself to the question: If it can be shown that economic dependency of women is not associated with fertility, then what are the variables that favor their abstention from work outside home? Results based on an extensive statistical analysis of Soviet data bring into focus new evidence. It was found thateconomic dependency of women is associated with themarriage differential between sexes. This relationship is especially evident in the regions where birth rates are of a low order. In the geographic areas where fertility is high, the percentage of economically inactive women increases with an increase in the urban population portion in an administrative area. Five principal components of urbanization have been identified: (1) educational level, (2) increasing rates of marriage, (3) divorce, (4) equal educational status of women as compared with men, and (5) the rising proportion of economically dependent women in the 16–54 age span. Most of the data are based on the 1959 Census and vital statistics by administrative areas for the U. S. S. R. For analytic purposes these were sorted into 30 areas of low birth rates, 62 areas with moderate rates, and 48 administrative areas corresponding to the high-fertility region in the Caucasus, Central Asia, and in several autonomous non-Slav republics.  相似文献   

5.
Information about residents of institutional and noninstitutional group quarters (GQ), particularly those with disabilities, has been limited by gaps in survey data, and statistics based on data that exclude some or all GQ residents are biased as estimates of total population statistics. We used the 2006 and 2007 American Community Survey (ACS) to identify the distribution of working-age populations with and without disabilities by major residence type and to assess the sensitivity of disability statistics to GQ residence. Our findings show that (1) of those with disabilities, about 1 in 13 males and 1 in 33 females live in GQ; (2) GQ rates are higher for individuals reporting mental, self-care, or go-outside-the-home disabilities than for those reporting sensory, physical, or employment disabilities; (3) younger males with disabilities are more likely to reside there, particularly at institutional GQ, reflecting their relatively high incarceration rate; (4) individuals with and without disabilities who are black, American Indian, were never married, or have less than a high school education have higher GQ residence rates; (5) 40% of male and 62% of female GQ residents have a disability; (6) adding GQ residents to household residents increases estimated disability prevalence for males by 6%, and the estimated difference between disability prevalence rates by gender nearly disappears; and (7) inclusion of the GQ population substantially lowers employment rate estimates for young males, blacks, and American Indians.  相似文献   

6.
Attention in this discussion of the population of India is directed to the following: international comparisons, population pressures, trends in population growth (interstate variations), sex ratio and literacy, urban-rural distribution, migration (interstate migration, international migration), fertility and mortality levels, fertility trends (birth rate decline, interstate fertility differentials, rural-urban fertility decline, fertility differentials by education and religion, marriage and fertility), mortality trends (mortality differentials, health care services), population pressures on socioeconomic development (per capita income and poverty, unemployment and employment, increasing foodgrain production, school enrollment shortfalls), the family planning program, implementing population policy statements, what actions would be effective, and goals and prospects for the future. India's population, a total of 684 million persons as of March 1, 1981, is 2nd only to the population of China. The 1981 population was up by 136 million persons, or 24.75%, over the 548 million enumerated in the 1971 census. For 1978, India's birth and death rates were estimated at 33.3 and 14.2/1000 population, down from about 41.1 and 18.9 during the mid-1960s. India's current 5-year plan has set a goal of a birth rate of 30/1000 population by 1985 and "replacement-level" fertility--about 2.3 births per woman--by 1996. The acceleration in India's population growth has come mainly in the past 3 decades and is due primarily to a decline in mortality that has markedly outstripped the fertility decline. The Janata Party which assumed government leadership in March 1977 did not dismantle the family planning program, but emphasis was shifted to promote family planning "without any compulsion, coercion or pressures of any sort." The policy statement stressed that efforts were to be directed towards those currently underserved, mainly in rural areas. Hard targets were rejected. Over the 1978-1981 period the family planning program slowly recovered. By March 1981, 33.4 million sterilizations had been performed since 1956 when statistics were 1st compiled. Another 3 million couples were estimated to be using IUDs and conventional contraceptives.  相似文献   

7.
This report is based upon information on population statistics and death statistics by different age groups in Yuyao, Jiangshan, and Huangyan counties of Zhejiang Province since 1978. The population condition in this area is analyzed. Collected information is then used as a foundation for predicting the trends in population growth in the next 20-60 years. In addition, the changes in the population's age structure and their impact are also studied in order to provide useful reference materials for the formulation of reasonable population planning measures. According to the general trends of population growth as predicted in this report, the authors believe that efforts should be made to encourage all married couples to have only one child. The first goal should be that at least half of the married couples have only one childs, and that all parents agree not to have a third child. This basic approach is reasonable and realistic and should not be used as a guiding principle to formulate policies and regulations on population planning. More actions and practices are needed to determine how effective this guiding principle is in reality.  相似文献   

8.
Since the 1960 Census, Demographic Analysis (DA) has been used by the Census Bureau to evaluate the coverage of the population. Administrative statistics on births, deaths, immigration and Medicare enrollments as well as estimates of legal emigration and net undocumented immigration are used to produce demographic analysis estimates of the population for the census date. These estimates are compared to the Census 2000 data to evaluate coverage in the census. The results are also compared to measures of undercount obtained from dual system estimation. The DA measures substantial reduction in net undercount in Census 2000 compared to 1990. The reductions occur among all demographic categories: all broad age groups, males and females, Blacks and Non-Blacks.  相似文献   

9.
Z Yang 《人口研究》1986,(1):17-20
The dynamic characteristics of China's 5 distinct stages of population development since the People's Republic of China was established in 1949, namely, 1950-1958, 1959-1963, 1964-1970, 1971-1981, and 1982-present, are outlined and discussed. By tracing both the overall rate of population growth and age-specific fertility rates for women aged 15-45 (5-year groups), a clear pattern emerges which indicates that the rates of early and late fertility (ages groups 15-19 and 30-45) are significantly declining. This is interpreted as a key factor in the overall decline in fertility rate. Annual statistics showing the number of children per woman of childbearing age and interval between 1st marriage and 1st birth are compared and discussed. It is concluded that the overall decline in birth rate and fertility rate since the 1970's is attributable to China's successful family planning campaign.  相似文献   

10.
This paper describes new midyear (July 1) estimates of the "true" population of the United States by age, sex, and color (white, nonwhite) for the 1940s and 1950s. It also presents the corresponding implied coverage estimates for the 1940 and 1950 censuses. The new population estimates are calculated by combining the most recent figures on the 1960 population with estimates of the demographic components of change for the 1950s and 1940s in an iterative reverse cohort-component projection algorithm. Among the principal findings of the new estimates are: (a) existing midyear estimates of the "true" population in the 1950s are 450,000 to 500,000 too high; (b) existing age-specific estimates for the 1950s tend to underestimate the population at the older ages (55 years and over) and overestimate the population in the young and middle adult years (15 to 54 years); (c) estimates of the "true" population in the 1940s were too low except for nonwhites at ages 65 and over; (d) existing estimates of percentage net undercount and underenumeration for the 1950 and 1940 censuses tend to be too high, substantially so for nonwhites in the 1940 Census; and (e) nonwhites were more completely enumerated in 1940 than in 1950. Thus, in addition to being methodologically and temporally consistent with post-1960 estimates, the new population estimates described here imply some substantial revisions in demographic, social, and economic statistics for the two decades prior to 1960.  相似文献   

11.
This table presents the population statistics of Thailand as of January 1, 2000. Thailand has a total population of 61,737,000; 30,726,000 are males and 31,011,000 are females. The urban areas have a population of 18,972,000, while the rural areas have a population of 42,765,000. The population numbers, by region, are the following: northern, 12,117,000; northeastern, 20,164,000; southern, 7,957,000; central (excluding Bangkok Metropolis), 13,654,000; Bangkok Metropolis, 7,845,000. Children (under age 15) numbered 14,764,000; labor force participants (ages 15-59), 41,647,000; the elderly (ages 60-79), 4,974,000; those aged 80 and above, 352,000; the school-age population (ages 6-21), 16,703,000; reproductive-age women (ages 15-44), 16,697,000; and the voting population (ages 18 and over), 43,691,000. The crude birth rate (per 1000 population) is 16.4, and the crude death rate is 6.5. Thailand has a natural growth rate of 1.0% and an infant mortality rate (per 1000 live births) of 22.4. Life expectancy at birth among males and females is 69.9 and 74.9, respectively. The total fertility rate is 1.9/woman, the contraceptive prevalence rate is 72.2%, and the ratio of females per 1 male is 1.0 for ages 0-59, 1.1 for ages 60-79, and 2.0 for ages 80 and over.  相似文献   

12.
The impacts of social networks on changes in contraception in rural Kenya are investigated using special data from a longitudinal household survey. An analytic model, informed by detailed knowledge of the setting, yielded estimates that indicate that (1) social networks have substantial effects even after unobserved factors (e.g., homophily) that may determine social networks are controlled; (2) controlling for these unobserved factors may substantially alter the estimated effects of networks (these controls were not used in previous studies); (3) network effects are important for both men and women; and (4) network effects are nonlinear and asymmetric, suggesting that networks provide information primarily through social learning, rather than by exerting social influence.  相似文献   

13.
To identify independent correlates of reported gambling problems amongst the Indigenous population of Australia. A cross-sectional design was applied to a nationally representative sample of the Indigenous population. Estimates of reported gambling problems are presented by remoteness and jurisdiction. Multivariable logistic regression was used to identify independent correlates of reported gambling problems amongst individuals and their social and family networks. The analysis was stratified by remoteness. Indigenous people living in remote locations reported significantly more gambling problems than those living in non-remote locations. In non-remote areas, being female, having high personal income, being more socially connected (i.e. involved in an Indigenous organisation or living in a household where all members were Indigenous) and reporting community problems were associated with higher levels of reported gambling problems. In remote areas, multifamily households, participation in sports and cultural events, and reporting of community problems were associated with higher reported gambling problems, while having a relative removed from their natural family was associated with lower reported problems. Problematic gambling is clearly related to the social and environmental contexts in which it occurs. Harm minimisation policies that focus on a reduction in crowding (especially in remote locations), increased public awareness of the negative consequences of gambling, improving access to support services, and lifting the socioeconomic status of Indigenous people may reduce gambling related harm in the medium to long term.  相似文献   

14.
Growing life expectancy and changes in financial, marriage and labour markets have placed the income position of the elderly at the center of scientific and political discourse. As a consequence, the last decades witnessed the publication of various influential reports that contained comparative statistics on old age income inequalities on the basis of international surveys. Common to these surveys is that they exclude the elderly who live in institutions. The divergence between the target population (e.g. the population aged 65 and over) and the survey population (e.g. the noninstitutionalized population aged 65 and over) that thus arises, might lead to important bias in the survey results. However, hardly any research has been conducted quantifying the direction and strength of this bias. This article tries to fill this gap and assesses the consequences of excluding the institutionalized elderly for the validity and international comparability of a number of indicators. Analyses with the Belgian Datawarehouse Labour Market and Social Protection show that the resulting bias is negligible for average equivalent pension income, but that assistance dependency among pensioners is underestimated by 10%. Furthermore, on the basis of international statistics, it is shown that the share of elderly in institutions varies substantially across countries. It is argued how this jeopardizes the international comparability of old age statistics. Finally, the article opens up a discussion on the meaning of lack of income and wealth among institutionalized elderly. It concludes that depending on how this question is answered, poverty will be under- or overestimated in countries with a high share of institutionalized elderly.  相似文献   

15.
The rural United States has suffered long-term population decline over the past several decades, especially in farming communities. In recent years, biofuel production has been argued to hold potential for the revitalization of rural America and in response, many rural communities have eagerly attempted to attract ethanol plants as a local development effort. This study conceptualizes economic revitalization in terms of population dynamics and investigates whether the establishment of a biofuel plant has been associated with changes in population aging, natural increase, and/or migration trends in the West North Central United States, the location of the majority of the nation’s biofuel plants. Using path dependence as a conceptual framework and aggregate statistics from a variety of sources, results from spatial regression models indicate that despite initial expectations, ethanol plants have no association with the demographic trajectories of rural counties.  相似文献   

16.
The Family Allowances Scheme In Great Britain covers all families with more than one child and Is the only current source of statistics giving the dates of birth of each child in the family. The main deficiencies of these statistics from the point of view of demographic analysis are the exclusion from the family of children who have left school or apprenticeship or who are over age 18, and the absence of any particulars about the parents, e.g. the mother's age or date of marriage. Comparison of the dates available, however, with the total numbers of children In the population throws some light on recent changes In family composition in Great Britain.  相似文献   

17.
"Distinction made between household-persons and household-markers [the person who identifies the family or household as a unit] is formalized in the notion of nested populations. This leads to an extension of the Leslie model into a formulation of growth for both population and households. The extended model involves the matrix presentation of household composition where ratios of household-persons who are age 0, per household-marker, function as surrogate values for fertility rates. The extended model describes change over time in the distribution of population by age, and in the distribution of households by age of household-marker, or household-head. The model involves the inversion of a nonnegative matrix, and is feasible only if it yields, projected over time, nonnegative entries in vectors representing distribution of population by age, and distribution of household-heads by age. Conditions for the feasibility of the extended model are discussed, and a sufficient condition for feasibility over a single interval is identified." (SUMMARY IN FRE)  相似文献   

18.
Chinese population statistics are collated from the time of the Western Han Dynasty (A.D. 2) to 19 5 3, including statistics of population and households for provinces as well as for China as a whole. Evidence bearing on the definitions of the statistics, methods of compilation, and reliability of the figures as measures of population size and change, is summarized. An "emended series " of population totals for China proper, A.D. 2 to 1953 is presented, excluding figures which are clearly defective.  相似文献   

19.
Measures of healthy life expectancy have beendeveloped over the last thirty years to evaluate thequality of life of an increasing life expectancy.These measures are usually accounting for prevalencerates of either disability or physical dependence inperforming everyday activities. Although they allowfor a better assessment of quality of life, they arenot reflecting the fact that a disabled person mightbe receiving adequate or inadequate assistance forthese activities. In a context of population aging,where our health care system will have to deal moreand more with chronic disease instead of acutedisease, it is imperative to develop a measure thatwill account for the adequacy of the assistanceprovided to the disabled elderly population. Usingdata from the 1986 Health and Activity LimitationSurvey, we are introducing a measure of healthy lifeexpectancy which will fill this gap. We present theconstruction of this measure of population health anddiscuss its usefulness in assessing policies at amacro level.  相似文献   

20.
Akers DS 《Demography》1967,4(1):262-272
The immigration component in national population estimates is comparatively small, but it is not insignificant and may indeed be an important source of error. Therefore, it warrants the considera-tion of those concerned with population estimates. The paper considers alternative methods for deriving estimates of immigration from the raw data and presents estimates of net immigration from 1950 to 1965. They are developed from estimates previously published by the Bureau of the Census, but they differ at some points where new data have become available or where a review of the data has led to a change in judgment on how best to use them. The paper also presents suggestions on how immigration statistics might be altered for purposes of improving the estimates.Census data may be used to estimate net immigration by three different methods, but upon analysis each method proves to be inadequate. Hence, data based on visas surrendered at the port of entry must be the principal source of immigration estimates. These data have their limitations because (1) they do not cover net arrivals of citizens from abroad and from Puerto Rico, (2) they do not report departures of aliens, and (3) they do not allocate all immigrants to year of entry. Alien registration and passenger data offer possible alternative estimates.The paper attempts to measure unrecorded immigration, discusses how net arrivals of citizens from abroad and from Puerto Rico may be estimated, and how the age, sex, and race of immigrants may be treated.  相似文献   

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