含有"United Nations"标签的书籍

拉丁美洲经济委员会-巴西的教育扩张和阶级流动趋势(英)-2023-54页

This paper examines trends in intergenerational class mobility for six birth cohorts of individuals born between 1921 and 1981, observed in surveys carried out in 1973, 1982, 1988, 1996 and 2014. Besides analysing the variation of trends on the basis of three temporal dimensions —age, birth cohort and survey year— the paper determines the effects of educational attainment on intergenerational mobility. The analysis reveals a historical trend of increasing social mobility across birth cohorts in Brazil. The effects of educational attainment are determined by three mechanisms: educational expansion, equality of educational opportunities and returns to education. While educational expansion is the main mechanism responsible for increasing mobility among the three younger cohorts of persons born between 1951 and 1981, the other two mechanisms play minor roles. In the period under review, the origin-destination class association, net of educational attainment, also declined and contributed to the increasing intergenerational mobility trend. Nevertheless, the expansion of higher education is the main reason for the increase in social mobility. This paper also examines racial disparities in intergenerational mobility. Despite the impressive educational expansion and increased mobility opportunities observed overall, the racial gap in intergenerational mobility opportunities does not change over time, with black people facing a greater probability of downward mobility.

拉丁美洲经济委员会-三个加勒比小岛屿发展中国家可持续运输的政策考虑:提高陆地运输效率的备选方案。巴巴多斯、英属维尔京群岛和牙买加(英)-2023.2-53页

As the Caribbean subregion seeks to implement strategies for meeting its obligations under the Paris Agreement, the sustainable development of its land transportation subsector has emerged as a significant challenge. This relates to both the need to reduce green house gas emissions, for which the subsector is a major emitter, as well as the necessity for reducing its overall dependence on imported fossil energy. While several policy initiatives have sought to address these issues, the evidence of growing land transportation problems now motivates a closer examination of challenges in the subsector. Among the main issues are increasing motor vehicle concentrations in small island spaces and growing traffic congestion arising from increased private motor vehicle ownership. All of these factors operate to produce economic, social and environmental burdens such as growing imports of vehicles, fuel and spare parts; increased motor vehicle accidents and mortality; and socially deviant behaviors such as road rage. Given the pivotal role of transportation in the advancement of economies and society, this paper suggests policy options for improving land transportation efficiency and sustainability in the Caribbean. This study also seeks to add to the very limited literature related to the issue of land transportation in Small Island Developing States.

Github | Docker | Project