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31.
Applied researchers have been drawn to models that attribute the demonstrated cross‐country differences in intergenerational income transmission to government failures to invest in the human capital of poor children. To highlight another potential mechanism, the disincentive effects of labor market taxation and redistribution, we present a simple model that can explain cross‐country differences in intergenerational mobility and other previously observed empirical patterns. Empirical tests using data on income mobility, tax rates, and public expenditures largely support the model predictions. We conclude that the common presumption that intergenerational mobility largely measures fairness or opportunity, and the resultant policy recommendations, are premature. (JEL D31, J24, J62)  相似文献   
32.
We show how correctly to extend known methods for generating error bands in reduced form VAR's to overidentified models. We argue that the conventional pointwise bands common in the literature should be supplemented with measures of shape uncertainty, and we show how to generate such measures. We focus on bands that characterize the shape of the likelihood. Such bands are not classical confidence regions. We explain that classical confidence regions mix information about parameter location with information about model fit, and hence can be misleading as summaries of the implications of the data for the location of parameters. Because classical confidence regions also present conceptual and computational problems in multivariate time series models, we suggest that likelihood-based bands, rather than approximate confidence bands based on asymptotic theory, be standard in reporting results for this type of model.  相似文献   
33.
This paper uses a case study of tourism in the Lake District and Exmoor to explore the relationship between ‘local food’ and sustainable rural tourism in the UK. Drawing on qualitative interviews with tourists, food producers and café, pub and restaurant owners, I use an approach based upon the commodity chain to trace the shifts in the discursive and material understandings of the ‘local’ that take place throughout the tourist food chain. These shifts are shown to occur in response to the need to negotiate the tensions between the ideals and the practicalities of food production and consumption which occur as a result of the relationships that exist throughout the food chain. Such conclusions are shown to be important for our understanding of the links between ‘local food’ and sustainable rural tourism because they indicate that we must attend to the values, as well as the practicalities, that drive the contemporary food sector at all stages of the food chain, from production to consumption.  相似文献   
34.
Urbanization is increasing in arid and semi-arid regions of the world and impacting native ecosystems through disturbance, climatic modification, and pollution deposition. Arid ecosystems often exhibit a mosaic of shrub/tree canopy covered and non-canopy covered patches that differ in elemental pools and processes. We measured belowground ecosystem attributes and processes in native Larrea tridentata {(D.C.) Cov} dominated communities along an urban–rural gradient in Phoenix, Arizona. Organic carbon (C), total nitrogen (N), and nitrate levels were significantly greater in the urban locations, but soil respiration rates (Rs) were higher at the rural sites. Urban sites exhibited no difference in Rs and N between the canopy and interplant patches while both the rural and suburban sites had significantly greater N and higher Rs under the canopy than in the interplant spaces. Soil respiration rates at the urban locations were not correlated with either soil moisture or temperature individually. These data suggest that urbanization has caused a disconnect of ecological pattern and processes in L. tridentata ecosystems within the urban setting such that water and N limitations no longer explain expected spatial Rs patterns, or elemental pools.  相似文献   
35.
Little is known about risk factors for problem gambling (PG) within the rapidly growing urban Aboriginal population in North America. Racial discrimination may be an important risk factor for PG given documented associations between racism and other forms of addictive behaviour. This study examined associations between racial discrimination and problem gambling among urban Aboriginal adults, and the extent to which this link was mediated by post traumatic stress. Data were collected via in-person surveys with a community-based sample of Aboriginal adults living in a mid-sized city in western Canada (N = 381) in 2010. Results indicate more than 80 % of respondents experienced discrimination due to Aboriginal race in the past year, with the majority reporting high levels of racism in that time period. Past year racial discrimination was a risk factor for 12-month problem gambling, gambling to escape, and post traumatic stress disorder (PTSD) symptoms in bootstrapped regression models adjusted for confounders and other forms of social trauma. Elevated PTSD symptoms among those experiencing high levels of racism partially explained the association between racism and the use of gambling to escape in statistical models. These findings are the first to suggest racial discrimination may be an important social determinant of problem gambling for Aboriginal peoples. Gambling may be a coping response that some Aboriginal adults use to escape the negative emotions associated with racist experiences. Results support the development of policies to reduce racism directed at Aboriginal peoples in urban areas, and enhanced services to help Aboriginal peoples cope with racist events.  相似文献   
36.
A country's reputation is a subject of increasing interest for the practice and research of public relations and public diplomacy. South Korea's reputation as viewed by Americans, the country's most strategic foreign public, is the topic of this study. It aims to (a) demonstrate a reliable, valid measurement model of country reputation in multidimensions for the research context; (b) examine effects of individual experience with and awareness of the country on country reputation; (c) assess the effects of country reputation on foreign publics' supportive intentions toward the country; and (d) explore strategic communication channels that can be effectively used for country reputation management. Key findings of this study include a valid, reliable measurement instrument of country reputation, strongly mediating effects of public awareness between individual experience and country reputation, and the encouraging effect of country reputation on nation branding.  相似文献   
37.
Northeastern Illinois is under heavy urban sprawl pressure leading to changes in land-use and negative impacts on existing wetlands directly adjacent to these new developments. Determining the impact of land-use changes on wetlands is important as it can have management and preservation implications within this region. One tool to evaluate these changes is the Floristic Quality Assessment (FQA), a method based on plant species composition at a site and the individual species habitat affinity and disturbance tolerance. The objectives of this study were to: 1) determine how wetland size, impervious surface, and distance from development influence FQA indicators and 2) determine if period (before/after development) and buffer size affect FQA indicators. Fourteen wetlands located in Northeastern Illinois were surveyed during 2004 through 2006 (prior development) and revisited in 2008 (post development). Positive correlations between wetland size and FQA indicators and between impervious surface and percent native species were found. In addition, species richness increased after development occurred and wetlands with larger buffers had higher percentages of native species. This study has demonstrated that larger wetlands are more diverse and land-use changes may not decrease wetland plant diversity in the short term in an urban setting.  相似文献   
38.
39.
Globalization and increased mobilities have multiplied cross-border transactions not only in the economic sphere but have also a major impact on human relationships of intimacy. This can be seen in the increased volume of differently mediated forms of international marriage, not just straddling ‘east’ and ‘west’, but within Asia and across different ethnicities and nationalities. International marriage raises a host of social issues for countries of origin and destination, including challenges relating to the citizenship status and rights of the marriage migrant. This paper examines the negotiation of citizenship rights in the case of commercially matched marriage migrants – namely Vietnamese women who marry Singaporean men and migrate to Singapore as ‘foreign brides’. While they are folded into the ‘family’ – what is often thought of as the basic building block of the nation in Asian societies – they are not necessarily accorded full incorporation into the ‘nation’ despite Singapore's claims to multiculturalism. This is particularly salient at a point when cross-nationality, cross-ethnicity marriages between Singapore citizens and non-citizens are on the increase, accounting for over a third of marriages registered in Singapore in recent years. Vietnamese women who marry Singaporeans are positioned within the nation-state's citizenship regime as dependents of Singaporean men, having to rely on the legitimacy of the marriage relationship as well as the whims of their husbands in negotiating their rights vis-à-vis the Singapore state. Drawing on interviews and ethnographic work with 20 Vietnamese women who are commercially matched marriage migrants, the paper first focuses on the vulnerable positions these women find themselves, particularly given difficulties in forging their own support networks as well as weaknesses of the civil society sector in what has been called an ‘illiberal democracy’ characterized by a political culture of ‘non-resistance’. The paper then goes on to examine the way they negotiate rights to residency/citizenship, work and children within webs of asymmetrical power relations within the family and the nation-state. We draw on our findings to show that citizenship is ‘a terrain of struggle’ within a multicultural nation-state shaped by social ideologies of gender, race and class and negotiated on an everyday basis within spheres of family intimacy.  相似文献   
40.
Access to an education is a social justice issue that requires a new courageous commitment to identifying and eliminating barriers to college success. For first generation, low income and students of color, education is the one remaining single most powerful factor to bring about a different outcome for their lives. This article explores what we can learn from the experience of students at a regional public university designated “at risk” and how to reclaim the place of public college education as an equalizing force in our nation.  相似文献   
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