137 resultados para Demographic surveys


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Transport planning necessarily takes into account more than just the immediate time-frame. In the case of urban transport, planning needs to come up with solutions in regard to infrastructure which is expensive and may have a useful life extending over several decades. Therefore, planning must take note of economic, technological, social and demographic changes that influence trips undertaken.The purpose of this article is to explore some of the trends that may well be observed in upcoming decades. The article arrives at the conclusion that, in a period of considerable change and uncertainty, failure to take heed of recent trends may result in the construction of infrastructure that is not always the most appropriate and, what is more, that urban development militates against the efficient operation of public transport and, as a result, is likely to jeopardize the sustainability of cities in the long term.

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We examine the problem of combining Mexican inflation predictions or projections provided by a biweekly survey of professional forecasters. Consumer price inflation in Mexico is measured twice a month. We consider several combining methods and advocate the use of dimension reduction techniques whose performance is compared with different benchmark methods, including the simplest average prediction. Missing values in the database are imputed by two different databased methods. The results obtained are basically robust to the choice of the imputation method. A preliminary analysis of the data was based on its panel data structure and showed the potential usefulness of using dimension reduction techniques to combine the experts' predictions. The main findings are: the first monthly predictions are best combined by way of the first principal component of the predictions available; the best second monthly prediction is obtained by calculating the median prediction and is more accurate than the first one.

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The Economic Commission for Latin America and the Caribbean (ECLAC) with support from the International Labour Organisation (ILO) and the Central Statistical Office in Saint Lucia convened a two-day Regional Workshop on Informal Sector Surveys for the Caribbean Subregion from 12 – 13 October 2009 in Castries, Saint Lucia. This workshop was one of the culminating activities of the United Nations Statistical Division-commissioned project Measurement of the Informal Sector and Informal Employment being conducted in the subregion since 2007. It was aimed primarily at disseminating the results of a 1-2 survey of the informal sector which was carried out in Saint Lucia over the period April 2008 to January 2009.

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The Economic Commission for Latin America and the Caribbean (ECLAC), Subregional Headquarters for the Caribbean, with support from the International Labour Organisation (ILO) and the Central Statistics Office in Saint Lucia, convened a two-day Data Dissemination Workshop on the Informal Sector and Informal Employment on 12 -13 October 2009 in Castries, Saint Lucia. This workshop was one of the culminating activities of the Interregional Project on the Measurement of the Informal Sector and Informal Employment being conducted in the Caribbean subregion. The workshop served as a forum for presenting the findings of the survey of the informal sector which was carried out in Saint Lucia over the period April 2008 to January 2009.

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La edición número 101 de Notas de Población contiene nueve artículos sobre temas de gran actualidad y relevancia futura en el campo de la investigación sociodemográfica en América Latina y el Caribe. La variada gama de asuntos que se abordan en la presente edición empieza con la aplicación del modelo de transición logística y las proyecciones de población, pasando por el análisis de la transición epidemiológica de la mortalidad infantil en América Latina y los determinantes de la fecundidad adolescente y su relación con la distribución territorial. Continúa con el envejecimiento, su relación con las condiciones de la vivienda, la migración calificada y el análisis del ciclo vital de las personas en relación con una esperanza de vida sana. Concluye con la percepción de la alteridad en la declaración del color y la raza en la encuesta de empleo del Brasil.

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