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This paper explores the role of mortality in the long transition from Malthusian stagnation to sustained economic growth. An endogenous child mortality rate that varies inversely with parents standard of living is added to the framework in Galor and Weil (AER 2000). In our version of the model, the transition from stagnation to growth, triggered by an exogenous shock to technology, comprises a mortality revolution succeeded by a demographic transition.This paper has benefitted from discussions with and suggestions made by KarlGunnar Persson, Christian Schultz, and, particularly, Christian Groth at the University of Copenhagen. I gratefully acknowledge the insightful criticisms of two anonymous referees, and I thank Paula Madsen for English proof-reading. Responsible editor: Alessandro Cigno.  相似文献   

3.
Has the relative unemployment propensity for the low-skilled increased during the 1990s? We address this question empirically, based on two notions of low skills; i) low education, and ii) low ability, conditioned on education and work experience. Ability is identified by previous earnings. Evaluated by the education-based measure, we find that unemployment propensity has not developed unfavourably for the low-skilled. Evaluated by the ability-based measure, it has. We uncover a steady deterioration of employment prospects for persons with low ability relative to others with similar formal qualifications. The adverse employment effects of being low-skilled are stronger the higher is formal education.All correspondence to Knut Røed. The paper is part of the project Sorting, exposed groups and labour market programs financed by the Research Council of Norway. We wish to thank Rolf Aaberge, Paul Gertler, Harald Goldstein, Karl Ove Moene, Jon Strand, Steinar Strøm, Asbjrn Rødseth and an anonymous referee for helpful comments. Responsible editor: John F. Ermisch.  相似文献   

4.
Welfare participation and welfare dependence among the unemployed   总被引:1,自引:1,他引:0  
We regard individual unemployment duration as an important determinant of individuals welfare dependence. Welfare receipt is modelled for a unique data set of 4,655 Finnish unemployed individuals. A two-stage binomial hurdle model is applied, and estimations are made by both ML and GMM. Disregarding the full interrelation between unemployment and welfare clearly underestimates the importance of the former. Unemployment has a clear impact on both the probability of welfare participation and on welfare dependence among recipients. Using a finite mixture model we find that there is a small minority of unemployed welfare recipients who are locked-in in welfare dependence.All correspondence to Maria Melkersson. We thank participants at the ESPE 2001 conference, João Santos Silva and two anonymous referees for valuable comments. Financial support from Rektor för Åbo Akademi is gratefully acknowledged (Saarela). Responsible editor: Junsen Zhang.  相似文献   

5.
The crucial challenge for integrated analyses of socioeconomic systems is keeping coherence in their multidimensional representation. Our approach describes the hierarchical structure of socioeconomic systems using the profile of allocation of human activity over a set of compartments defined at different hierarchical levels (e.g., whole countries, economic sectors, individual households). Compartments are characterized in terms of intensive variables (intensity of both exosomatic energy flows and added value flows per unit of human activity) and the extensive variable Total Human Activity population. In this way, relations of congruence across hierarchical levels can be used to link non-equivalent analyses. That is, changes in demographic variables, economic variables, technical coefficients, indices of environmental loading, institutional settings, and social aspirations are no longer independent of each-other even if described within different scientific disciplines.  相似文献   

6.
The concept of demographic efficiency is proposed and data envelopment analysis (DEA) is introduced as a method for determining which countries are demographically efficient. While the purpose of the paper is primarily to introduce the concept and the method, several simple examples are used for purposes of illustration. The first two explore how efficiently countries have converted their level of development (the input) into male and female life expectancy at birth (the outputs). The second two reverse the postulated relationship, treating life expectancies as inputs reflecting general health status of a population, and level of development as the output. Countries are said to be efficient if they have achieved the maximum output observable for a given level of input, or if they have minimized the inputs needed to achieve a prescribed level of output. Together, the efficient cases form an efficiency frontier. DEA, a form of linear programming, also permits the degree of inefficiency of countries lying behind this frontier to be measured by calculating the extent of the output slacks that are present. Output slacks are the shortfalls in the level of performance that could have been achieved given the inputs available, and may themselves be treated as independent variables in explorations of the sources of demographic inefficiency. One example of such an exploration is offered—an attempt to account for shortfalls in female life expectancy, given levels of development.  相似文献   

7.
We investigate the effect of welfare reform in the US on the employment and hours of work of low-educated foreign-born and native-born women. For foreign-born women, we investigate whether the effect of welfare reform differed by year of immigration. We also examine whether the immigrant provisions of welfare reform had a chilling effect on those who remained eligible for benefits. Results suggest that welfare reform induced low-educated women to increase their labor market attachment; reform had larger effects on the least educated native-born women and among foreign-born, larger effects on more recent arrivals. The chilling hypothesis is not supported.All correspondence to Robert Kaestner. The authors thank Lynn Karoly, Christoph Schmidt, seminar participants at the University of Illinois and New School University, and several anonymous referees for comments on a previous draft of this paper. Robert Kaestner is grateful to the Luce Foundation for partial support for this research. Responsible editor: Christoph M. Schmidt.  相似文献   

8.
The effect of immigration on wages in three european countries   总被引:1,自引:0,他引:1  
We analyse the impact of immigrants on natives wages from reduced form wage equations for The Netherlands, United Kingdom and Norway. We find very small effects on natives wages and no dominant robust patterns of substitution and complementarity. Effects on earlier immigrants own wages are larger but less reliable. Further work should focus on these own effectsData on the Netherlands have been made available by CEREM, Statistics Netherlands(LSO 1997) and SEO (GPD). The British QLFS have been made available by the Office for National Statistics through the Data Archive, University of Essex. Norwegian KIRUT data have been made available by NSD, Bergen. We are grateful to these organisations. None of these organisations bear any responsibility for the analyses or interpretations of data sets used in this paper.Two anonymous referees and the editor-in-chief, Klaus Zimmermann, provided very valuable inputs for a substantial revision of an earlier draft. Responsible editor: Klaus F. Zimmermann.  相似文献   

9.
Human variation is extensive both within and between populations. This variation affects all traits, including the susceptibility to disease and responses to the environment. For social and political reasons, we tend to think of our species or our own national population as being divided into meaningful groups variously called by such terms as races, or ethnic groups, and there is often an implicit assumption that these groups are relatively homogeneous within and very different between. Examples are given to show that there are major differences in the frequency of genetic susceptibility to various diseases between some such groups, but that the amount of variation among individuals is extensive even within such groups. Population subdivision can be useful for studying disease, but human variation is a general phenomenon tied to groups via their population and geographic history, not value-based categorical differences.  相似文献   

10.
The paper develops a model of family size decisions in which couples choose explicitly a combination of mother's time and purchased childcare (e.g. childminders, nannies) for the care and rearing of children. The theoretical model implies that the impact of the mother's wage on her completed fertility varies with the market price of childcare, and that this effect increases (becoming less negative or more positive) with the level of her wage. Econometric analysis of British micro-data confirms the main predictions of the model.I am grateful to Robert E. Wright for research assistance, and to the Economic and Social Research Council for supporting this research as part of the research programme Income Inequality, Gender and Demographic Differentials. Financial support from the Nuffield Foundation grant no. PT/9, Family Formation and Employment Activity is also gratefully acknowledged.  相似文献   

11.
Using a simple model where singles try to maximize their pizazz, we examine the value of the option to give up single life in favor of marriage when singles pizazz levels follow correlated geometric Brownian motions. We derive the critical level of relative pizazz levels that triggers the move to marriage and find that for relatively small (large) potential economies of scale in marriage, a single will generally be willing to get married if his/her prospective partners pizazz is strictly higher (lower) than his/her own.Comment by two anonymous referees are gratefully acknowledged. Responsible editor: Alessandro Cigno.  相似文献   

12.
The paper explores the constraints of an optimal regional policy, and itidentifies them through program indicators of city effect and overload.Based on a `programming approach to the regional analysis, and on the``optimal centrality' concept as meeting point of the city-effect andcity-overload curves, the paper outlines a core list of indicators ofcity-effect and overload, quantifying their dimensions (as findings ofresearch conducted for the European Commission, from 20 cities in 4countries of the EU: France, Germany, Italy and United Kingdom).Further, a ``strategy' for an appropriate urban-regionalreorganization, and for an appropriate `ambit of measuring urban lifequality, is outlined. And finally the misleading risks of comparisons inthe wrong spatial `ambit of data collecting about quality of life, arediscussed.  相似文献   

13.
The restructuring of financial markets and financial institutions through bank mergers has been accompanied in many countries by concerns about the resulting `geography of finance. In Canada, two proposed mergers involving four of the largest banks have raised concerns about the possibleimpacts of the proposed mergers on the access to financial institutions in rural Canada. This paper assesses the potential impact of the proposed mergers on the geography of finance in rural communities in British Columbia. The methodological choices which must be made to frame such an anlysis are discussed and include choices related to the definitions of `accessibility, the `industry, a `competitive industry, a `bank branch and a `community. A new Index is devised to measure the vulnerability of rural communities to post-merger bank branch closures. It is concluded that the bank mergers will, if approved, have significant negative impacts for the accessibility of the banking system in rural British Columbia. It is also suggested that Canada needs to examine establishing a wider regulatory framework which addresses the issue of accessibility on a longer term basis.  相似文献   

14.
The effects of labour supply growth on the welfare of preexisting destination and non-emigrating source populations are analysed. This growth occurs in open economies where free trade in capital goods is possible. Traditional small economy arguments for population growth rely on the existence of priced though internationally immobile factors. When all factors are freely-traded and population grows naturally the case rests either on market distortions or common property within families. In an integrated world labour growth can lead to capital flight and increasing wage differentials. With international interactions, immigration increases preexisting welfare in destination countries but generally (not always) reduces it for non-emigrants in source countries. Immigration provides efficiency gains to all originally resident in source countries. Natural population growth anywhere promotes efficiency gains everywhere.  相似文献   

15.
This paper reports a multi-stagestudy carried out between 1999 and 2001 whichaimed to develop an instrument to address theneed for a culturally relevant measure ofquality of life for Chinese older persons inHong Kong and similar communities. The firststage of the research involved a focus groupstudy conducted in August 1999 which it washoped would reflect how quality of life maybe interpreted by older persons themselves. Thenext stage, a content analysis of the focusgroups, enabled the construction of aquestionnaire containing over 100 items onvarious aspects of quality of life (QoL). Thequestionnaire was reviewed by a panel ofexperts and the items were refined and reducedto 86 to which were added a further 25 itemsfor socio-demographic background. This formedthe initial instrument. The final stage was avalidation study based on a representativecommunity survey, with a sample of 3,000respondents drawn for the research team by theCensus and Statistics Department of the HongKong Special Administrative Region (HKSAR)Government. The survey yielded 1,616 successfulinterviews with older persons aged 60 or above.The careful stratification of the sampleenabled us to say that subjects in all thestages of the survey had broadly similarcharacteristics to the general Hong Kongelderly population in sex and age distribution.After a rigorous process of validation, theresearch team recommended the adoption of bothan index and six domains for measuring HongKong older persons QoL. The new scale containsa total of 21 items which can be grouped intovarious domains: subjective well-being, with 4items; health with 5 items; interpersonalrelationships with 6 items; achievement-recognition with 4 items, finance and livingconditions (1 item each). The overall QoL scalehas a Cronbachs alpha of 0.72 with its domainsranging from 0.65 to 0.77 which indicates ahigh degree of statistical reliabilities. Thename recommended for the scale was Hong KongQuality of Life for Older Persons Scale-abbreviated as HKQoLOCP.  相似文献   

16.
Several criteria have evolved in law and tradition to constrain the delineation of Congressional and State and local legislative districts, such as population equality, geographic compactness, race/ethnic compactness, and integrity of political boundaries. Among the various criteria, I focus on compactness, and in particular, the legal and mensural aspects. Following the passage of the Voting Rights Act in 1965, racial compactness has been employed more and more frequently as a primary criterion, and with reduced restraint compared with other criteria, except perhaps for population equality. In Thornburg v. Gingles (1986), the Supreme Court recognized racial/ethnic compactness and polarization in voting practices as prerequisites for newly established majority-minority districts. In Shaw v. Reno (1993), the Court reaffirmed the principle of geographic compactness as against racial compactness by noting that the shape of Cong. Dist. 12 of North Carolina was bizarre and that it was drawn solely on racial grounds. With this decision, race/ethnic compactness and, by extension, the broad interpretation of the Voting Rights Act have been put in conflict with geographic compactness as criteria. More recently, in Miller v. Johnson (1995), use of race as a predominant factor in district delineation, apart from compactness, was rejected. These developments should renew interest in and support for formal statistical guidelines in evaluating geographic compactness in redistricting plans. Many formulas for measuring compactness have been proposed and tested. Here the commonly used perimeter/circle measure and the circumscribed area/circle measure are compared by an examination of some simple geometric figures and 1990-Census-based C.D.'s. Some problems with these measures are noted, and a new measure, the CV/radii measure (the complement of the coefficient of variation of the radii of the district), is proposed and illustratively applied.  相似文献   

17.
The nations of the Middle East have arrived at a historic crossroad.Anchored in centuries-old political and economic systems, bitterethnic rivalries, recurrent intra-regional warfare, and risingfundamentalism, the majority of the regions countries haveremained largely apart from the transformative processes that areshaping development in other world regions. Indeed, the impressionexists that no development miracles are occurring in theMiddle East and that, to a very great extent, the region isseeking to remain on the sidelines of modern history. And,yet, if the countries of the Middle East are to flourish in thenext century they, too, must restructure themselves for dealingwith the complex realities associated with increasing globalizationand internationalization. This paper reports on the socialdevelopment successes and failures of 22 Middle Eastern countriesbetween 1970 and 1997. Also identified are the regions SocialLeaders (SLs), Socially Least Developing Countries (SLDCs),and Middle Performing Countries (MPCs). The social, political,and economic factors most closely associated with each countrysdevelopment classification are identified.  相似文献   

18.
Using data from China's One-Per-Thousand Fertility Survey conducted in 1982, a cohort analysis is carried out to estimate the demographic consequences of the later marriage policy implemented in the People's Republic of China. The findings show that the later marriage policy had a strong positive effect on mean age at first marriage and first birth but a negative impact on the length of the first-birth interval, suggesting that the depressing effects on fertility of the administratively enforced postponement of marriage are more or less offset by adjustments over the first-birth interval by Chinese couples.  相似文献   

19.
This paper examines the twentieth-century population recovery of Native Americans with reference to urbanization, intermarriage, and differing definitions of the Native American population from census and tribal enrollment data. The recent increase in the Native American population reflected in regular US decennial censuses since 1960 is discussed in terms of changing self-identification of individuals as Native American. Also discussed are criteria for enrollment in Native American tribes, particularly blood quantum requirements. Census enumerations are compared with tribal enrollment data, and it is illustrated that a large proportion of those identifying as Native American in the census are not enrolled in Native American tribes. Special attention is given to how Native American tribal enrollment criteria might impact future population size.  相似文献   

20.
The related terms, sustainable and sustainability, have become popular and are used to describe a wide variety of activities which are generally ecologically laudable. At the same time, the term compromise is heard more frequently because the needs of the environment often are in conflict with the needs of humans. A brief examination of the question of compromise shows that a series of ten compromises, each of which saves 70% of the remaining environment, results in the saving of only 3% of the environment. Judging from the ways in which the terms sustainable and sustainability are used, their definitions are not very precise, especially when compromises are involved. An attempt is made here to give firm definition to these terms and to translate the definition into a series of laws and hypotheses which, it is hoped, will clarify the implications of their use. These are followed by a series of observations and predictions that relate to sustainability.  相似文献   

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