Population Share (population + share)

Distribution by Scientific Domains


Selected Abstracts


Can OECD Countries Afford Demographic Change?

THE AUSTRALIAN ECONOMIC REVIEW, Issue 2 2007
Ross Guest
This article provides new calculations on the effects of demographic change on living standards in all 30 OECD countries using the latest demographic projections up to 2050 from the United Nations, World Population Prospects, 2004 Revision. The calculations include several potential dividends that could offset, at least in part, the costs of a lower working age population share. The effects of demographic change calculated here are mechanical in that there is no explicit optimising behaviour. In the worst case scenario, which assumes zero potential dividends and no increase in labour force participation rates, the negative effect of demographic change on living standards among OECD countries over the whole period from 2006 to 2050 ranges from zero to 28 per cent, with an average over all countries of 15.5 per cent. In the best case scenario the average effect is zero. About half of the difference between the best and worst case scenarios is accounted for by higher labour force participation and about half by the potential dividends from demographic change. [source]


How Should We Estimate Public Opinion in The States?

AMERICAN JOURNAL OF POLITICAL SCIENCE, Issue 1 2009
Jeffrey R. Lax
We compare two approaches for estimating state-level public opinion: disaggregation by state of national surveys and a simulation approach using multilevel modeling of individual opinion and poststratification by population share. We present the first systematic assessment of the predictive accuracy of each and give practical advice about when and how each method should be used. To do so, we use an original data set of over 100 surveys on gay rights issues as well as 1988 presidential election data. Under optimal conditions, both methods work well, but multilevel modeling performs better generally. Compared to baseline opinion measures, it yields smaller errors, higher correlations, and more reliable estimates. Multilevel modeling is clearly superior when samples are smaller,indeed, one can accurately estimate state opinion using only a single large national survey. This greatly expands the scope of issues for which researchers can study subnational opinion directly or as an influence on policymaking. [source]


Agglomeration Economies, Division of Labour and the Urban Land-rent Escalation: A General Equilibrium Analysis of Urbanisation

AUSTRALIAN ECONOMIC PAPERS, Issue 2 2002
Guang-Zhen Sun
A general equilibrium model with increasing return to labour specialisation and economies of transaction agglomeration is developed to address the residential land-rent escalation associated with the urbanisation process, which is in turn endogenised as a result of the evolution of the division of labour. The interplay among the geographical pattern of transactions, trading efficiency and the network size of the division of labour plays a crucial role in our story of urbanisation. We show that: as transaction conditions are improved, the equilibrium level of division of labour and individuals specialisation levels increase; the urban land-rent increases absolutely as well as relative to that in the rural area, the relative per capita lot size of residence in the urban and rural areas decreases; the diversity of occupations in the urban area and the population share of urban residents increase; and the productivity of all goods and per capital real income increase. [source]


Racial Fractionalization and School Performance

AMERICAN JOURNAL OF ECONOMICS AND SOCIOLOGY, Issue 2 2010
Joshua C. Hall
The literature on racial "peer effects" suggests that diversity improves at least some students' school performance. However, a literature in economic development posits that diversity may negatively affect school performance by undermining the efficient provision of education. This article empirically tests this claim, which we call the "public goods channel," by examining the relationship between racial diversity and student performance in Ohio's school districts. We find that moving from a completely homogenous school district to one in which two racial groups have equal population shares is associated with a 7,17.5 percentage point decline in the passage rate on the state math exam, holding per pupil spending across districts constant. These results suggest that racial diversity is negatively associated with school performance but that the public goods channel is not responsible for this relationship. [source]


Accounting for unemployment among people with mental illness

BEHAVIORAL SCIENCES & THE LAW, Issue 6 2002
Richard C. Baron M.A.
Persons diagnosed with a serious mental illness experience significantly high rates of unemployment compared with the general population. The explanations for this situation have included a focus on the symptoms associated with these disorders, a focus on the lack of effective vocational rehabilitation programs for this population, and, most recently, a focus on employer discrimination and the financial disincentives to employment in various public policies. The authors of this manuscript review the evolution in thought pertaining to the labor market experiences of persons with a serious mental illness and propose as an additional set of factors that should be considered, those labor market liabilities that this population shares with others without disabilities who experience similar employment histories. The authors conclude that the inclusion of these factors in our understanding of issues that persons with serious mental illness face in the competitive labor market will likely lead to a further evolution in program and policy development. Copyright © 2002 John Wiley & Sons, Ltd. [source]