La tesis se centra en la Visión por Computador y, más concretamente, en la segmentación de imágenes, la cual es una de las etapas básicas en el análisis de imágenes y consiste en la división de la imagen en un conjunto de regiones visualmente distintas y uniformes considerando su intensidad, color o textura.Se propone una estrategia basada en el uso complementario de la información de región y de frontera durante el proceso de segmentación, integración que permite paliar algunos de los problemas básicos de la segmentación tradicional. La información de frontera permite inicialmente identificar el número de regiones presentes en la imagen y colocar en el interior de cada una de ellas una semilla, con el objetivo de modelar estadísticamente las características de las regiones y definir de esta forma la información de región. Esta información, conjuntamente con la información de frontera, es utilizada en la definición de una función de energía que expresa las propiedades requeridas a la segmentación deseada: uniformidad en el interior de las regiones y contraste con las regiones vecinas en los límites. Un conjunto de regiones activas inician entonces su crecimiento, compitiendo por los píxeles de la imagen, con el objetivo de optimizar la función de energía o, en otras palabras, encontrar la segmentación que mejor se adecua a los requerimientos exprsados en dicha función. Finalmente, todo esta proceso ha sido considerado en una estructura piramidal, lo que nos permite refinar progresivamente el resultado de la segmentación y mejorar su coste computacional.La estrategia ha sido extendida al problema de segmentación de texturas, lo que implica algunas consideraciones básicas como el modelaje de las regiones a partir de un conjunto de características de textura y la extracción de la información de frontera cuando la textura es presente en la imagen.Finalmente, se ha llevado a cabo la extensión a la segmentación de imágenes teniendo en cuenta las propiedades de color y textura. En este sentido, el uso conjunto de técnicas no-paramétricas de estimación de la función de densidad para la descripción del color, y de características textuales basadas en la matriz de co-ocurrencia, ha sido propuesto para modelar adecuadamente y de forma completa las regiones de la imagen.La propuesta ha sido evaluada de forma objetiva y comparada con distintas técnicas de integración utilizando imágenes sintéticas. Además, se han incluido experimentos con imágenes reales con resultados muy positivos. / Image segmentation is an important research area in computer vision and many segmentation methods have been proposed. However, elemental segmentation techniques based on boundary or region approaches often fail to produce accurate segmentation results. Hence, in the last few years, there has been a tendency towards the integration of both techniques in order to improve the results by taking into account the complementary nature of such information. This thesis proposes a solution to the image segmentation integrating region and boundary information. Moreover, the method is extended to texture and colour texture segmentation.An exhaustive analysis of image segmentation techniques which integrate region and boundary information is carried out. Main strategies to perform the integration are identified and a classification of these approaches is proposed. Thus, the most relevant proposals are assorted and grouped in their corresponding approach. Moreover, characteristics of these strategies as well as the general lack of attention that is given to the texture is noted. The discussion of these aspects has been the origin of all the work evolved in this thesis, giving rise to two basic conclusions: first, the possibility of fusing several approaches to the integration of both information sources, and second, the necessity of a specific treatment for textured images.Next, an unsupervised segmentation strategy which integrates region and boundary information and incorporates three different approaches identified in the previous review is proposed. Specifically, the proposed image segmentation method combines the guidance of seed placement, the control of decision criterion and the boundary refinement approaches. The method is composed by two basic stages: initialisation and segmentation. Thus, in the first stage, the main contours of the image are used to identify the different regions present in the image and to adequately place a seed for each one in order to statistically model the region. Then, the segmentation stage is performed based on the active region model which allows us to take region and boundary information into account in order to segment the whole image. Specifically, regions start to shrink and expand guided by the optimisation of an energy function that ensures homogeneity properties inside regions and the presence of real edges at boundaries. Furthermore, with the aim of imitating the Human Vision System when a person is slowly approaching to a distant object, a pyramidal structure is considered. Hence, the method has been designed on a pyramidal representation which allows us to refine the region boundaries from a coarse to a fine resolution, and ensuring noise robustness as well as computation efficiency.The proposed segmentation strategy is then adapted to solve the problem of texture and colour texture segmentation. First, the proposed strategy is extended to texture segmentation which involves some considerations as the region modelling and the extraction of texture boundary information. Next, a method to integrate colour and textural properties is proposed, which is based on the use of texture descriptors and the estimation of colour behaviour by using non-parametric techniques of density estimation. Hence, the proposed strategy of segmentation is considered for the segmentation taking both colour and textural properties into account.Finally, the proposal of image segmentation strategy is objectively evaluated and then compared with some other relevant algorithms corresponding to the different strategies of region and boundary integration. Moreover, an evaluation of the segmentation results obtained on colour texture segmentation is performed. Furthermore, results on a wide set of real images are shown and discussed.

This thesis presents results from two separate studies. First, the impact of bearer length on yield components within the canopy was investigated in season 2005/06, on a commercially-managed, mechanically-pruned vineyard of Vitis vinifera L. Cabernet Sauvignon in Coonawarra, South Australia. Pruning resulted in the retention of bearers with 1-7 nodes, with the weighted average bearer length being two nodes for the canopy. As bearers of one to five nodes in length were the most common, these were studied. Yield components (on a per shoot basis) were analysed according to the node position on the bearer at which the shoot arose. Both budburst and inflorescence number per node were highest at the distal node positions on each length bearer, even if the nodes were at the same positions from the base of the bearer and would normally be expected to have similar fertility. Budburst appeared to act by modifying inflorescence number per node based on the relative location of each node from the apex of the bearer. Shoots that arose from the most distal node positions had the highest flower number per inflorescence and berry number per bunch. Flower number per inflorescence was significantly higher on two-inflorescence shoots than single-inflorescence shoots. The relationship between bunch size and node position, unlike that between inflorescence number and node position, was dependent on bearer length. The relative size of the inflorescence appeared to be affected more so by the node pOSition at which the shoot occurred on the bearer, as opposed to the actual node position on the shoot at which the inflorescence occurred. There was a positive, non-linear relationship between average fruit yield per bearer and bearer length. Although yield was highest from the bearer with the highest node number (five nodes), there was no significant difference in yield per bearer for the bearers of three to five nodes in length. If average bearer length was increased from two to three nodes, the potential yield gain per bearer is estimated at 38 per cent. The second study presents results of correlations between bunch number and components of bunch weight (flower number and berry number) to investigate co-development of bunch number and bunch size. These data were collected from 4 vineyards in the Limestone Coast Zone of South Australia from Vilis vinifera L. Chardonnay, Shiraz and Cabemet Sauvignon during seasons 2002/03 to 2006/07. The significant correlations found between fertility and both bunch weight and flower number per inflorescence suggest that the same factors that affect bunch number in a particular season will also affect bunch size. When inflorescence primordia were initiated and differentiated under cool conditions, actual bunches per node and flowers per inflorescence were low. Differences in climate between the vineyard sites were found to be minimal and therefore did not strongly affect the magnitude of the yield components at the vineyard sites. Cultural practices at each vineyard site were sufficiently variable to affect fertility levels. Genotype is thought to determine the range of flowers per inflorescence that a variety can potentially carry, whereas actual flower number per inflorescence is thought to be determined by inflorescence primordium initiation and differentiation temperatures, as well as temperatures during budburst. Despite significant correlations between flower number per inflorescence and berry number per bunch, flower number per inflorescence preflowering for Cabemet Sauvignon, Shiraz and Chardonnay is inversely related to actual percentage fruit set. This is possibly a survival mechanism for the grapevine as it allows the vine to maximise yield each season without detriment to its longevity. Bunches per vine accounted for the majority of the seasonal variation in yield per vine. Fluctuations in bunch number per vine (and therefore yield) are likely to be reduced by varying the number of nodes retained per vine according to the relative fruitfulness per node present pre-pruning. This practice is therefore likely to result in the seasonal variation of berries per bunch becoming a stronger driver of yield. The commercial impacts of these studies are two-fold. Data presented will assist growers to understand the reasons for which their pruning regimes are affecting yield production and how these pruning regimes may be modified to achieve a target yield-particularly when growers are faced with seasons of low predicted fertility. In addition, data presented will allow growers to improve their crop forecasting accuracy, with a greater understanding of the link between bunch number and bunch size. In the current situation of oversupply in the wine industry, wineries are adopting a tough stance towards growers over-delivering on their grape contracts. Therefore, any assistance that can be provided to growers on improving accuracy of yield estimates will be beneficial both to the grower and winery. / http://proxy.library.adelaide.edu.au/login?url= http://library.adelaide.edu.au/cgi-bin/Pwebrecon.cgi?BBID=1352744 / Thesis (M.Ag.Sc.) -- University of Adelaide, School of Agriculture, Food and Wine, 2009

This thesis presents results from two separate studies. First, the impact of bearer length on yield components within the canopy was investigated in season 2005/06, on a commercially-managed, mechanically-pruned vineyard of Vitis vinifera L. Cabernet Sauvignon in Coonawarra, South Australia. Pruning resulted in the retention of bearers with 1-7 nodes, with the weighted average bearer length being two nodes for the canopy. As bearers of one to five nodes in length were the most common, these were studied. Yield components (on a per shoot basis) were analysed according to the node position on the bearer at which the shoot arose. Both budburst and inflorescence number per node were highest at the distal node positions on each length bearer, even if the nodes were at the same positions from the base of the bearer and would normally be expected to have similar fertility. Budburst appeared to act by modifying inflorescence number per node based on the relative location of each node from the apex of the bearer. Shoots that arose from the most distal node positions had the highest flower number per inflorescence and berry number per bunch. Flower number per inflorescence was significantly higher on two-inflorescence shoots than single-inflorescence shoots. The relationship between bunch size and node position, unlike that between inflorescence number and node position, was dependent on bearer length. The relative size of the inflorescence appeared to be affected more so by the node pOSition at which the shoot occurred on the bearer, as opposed to the actual node position on the shoot at which the inflorescence occurred. There was a positive, non-linear relationship between average fruit yield per bearer and bearer length. Although yield was highest from the bearer with the highest node number (five nodes), there was no significant difference in yield per bearer for the bearers of three to five nodes in length. If average bearer length was increased from two to three nodes, the potential yield gain per bearer is estimated at 38 per cent. The second study presents results of correlations between bunch number and components of bunch weight (flower number and berry number) to investigate co-development of bunch number and bunch size. These data were collected from 4 vineyards in the Limestone Coast Zone of South Australia from Vilis vinifera L. Chardonnay, Shiraz and Cabemet Sauvignon during seasons 2002/03 to 2006/07. The significant correlations found between fertility and both bunch weight and flower number per inflorescence suggest that the same factors that affect bunch number in a particular season will also affect bunch size. When inflorescence primordia were initiated and differentiated under cool conditions, actual bunches per node and flowers per inflorescence were low. Differences in climate between the vineyard sites were found to be minimal and therefore did not strongly affect the magnitude of the yield components at the vineyard sites. Cultural practices at each vineyard site were sufficiently variable to affect fertility levels. Genotype is thought to determine the range of flowers per inflorescence that a variety can potentially carry, whereas actual flower number per inflorescence is thought to be determined by inflorescence primordium initiation and differentiation temperatures, as well as temperatures during budburst. Despite significant correlations between flower number per inflorescence and berry number per bunch, flower number per inflorescence preflowering for Cabemet Sauvignon, Shiraz and Chardonnay is inversely related to actual percentage fruit set. This is possibly a survival mechanism for the grapevine as it allows the vine to maximise yield each season without detriment to its longevity. Bunches per vine accounted for the majority of the seasonal variation in yield per vine. Fluctuations in bunch number per vine (and therefore yield) are likely to be reduced by varying the number of nodes retained per vine according to the relative fruitfulness per node present pre-pruning. This practice is therefore likely to result in the seasonal variation of berries per bunch becoming a stronger driver of yield. The commercial impacts of these studies are two-fold. Data presented will assist growers to understand the reasons for which their pruning regimes are affecting yield production and how these pruning regimes may be modified to achieve a target yield-particularly when growers are faced with seasons of low predicted fertility. In addition, data presented will allow growers to improve their crop forecasting accuracy, with a greater understanding of the link between bunch number and bunch size. In the current situation of oversupply in the wine industry, wineries are adopting a tough stance towards growers over-delivering on their grape contracts. Therefore, any assistance that can be provided to growers on improving accuracy of yield estimates will be beneficial both to the grower and winery. / http://proxy.library.adelaide.edu.au/login?url= http://library.adelaide.edu.au/cgi-bin/Pwebrecon.cgi?BBID=1352744 / Thesis (M.Ag.Sc.) -- University of Adelaide, School of Agriculture, Food and Wine, 2009

This thesis presents results from two separate studies. First, the impact of bearer length on yield components within the canopy was investigated in season 2005/06, on a commercially-managed, mechanically-pruned vineyard of Vitis vinifera L. Cabernet Sauvignon in Coonawarra, South Australia. Pruning resulted in the retention of bearers with 1-7 nodes, with the weighted average bearer length being two nodes for the canopy. As bearers of one to five nodes in length were the most common, these were studied. Yield components (on a per shoot basis) were analysed according to the node position on the bearer at which the shoot arose. Both budburst and inflorescence number per node were highest at the distal node positions on each length bearer, even if the nodes were at the same positions from the base of the bearer and would normally be expected to have similar fertility. Budburst appeared to act by modifying inflorescence number per node based on the relative location of each node from the apex of the bearer. Shoots that arose from the most distal node positions had the highest flower number per inflorescence and berry number per bunch. Flower number per inflorescence was significantly higher on two-inflorescence shoots than single-inflorescence shoots. The relationship between bunch size and node position, unlike that between inflorescence number and node position, was dependent on bearer length. The relative size of the inflorescence appeared to be affected more so by the node pOSition at which the shoot occurred on the bearer, as opposed to the actual node position on the shoot at which the inflorescence occurred. There was a positive, non-linear relationship between average fruit yield per bearer and bearer length. Although yield was highest from the bearer with the highest node number (five nodes), there was no significant difference in yield per bearer for the bearers of three to five nodes in length. If average bearer length was increased from two to three nodes, the potential yield gain per bearer is estimated at 38 per cent. The second study presents results of correlations between bunch number and components of bunch weight (flower number and berry number) to investigate co-development of bunch number and bunch size. These data were collected from 4 vineyards in the Limestone Coast Zone of South Australia from Vilis vinifera L. Chardonnay, Shiraz and Cabemet Sauvignon during seasons 2002/03 to 2006/07. The significant correlations found between fertility and both bunch weight and flower number per inflorescence suggest that the same factors that affect bunch number in a particular season will also affect bunch size. When inflorescence primordia were initiated and differentiated under cool conditions, actual bunches per node and flowers per inflorescence were low. Differences in climate between the vineyard sites were found to be minimal and therefore did not strongly affect the magnitude of the yield components at the vineyard sites. Cultural practices at each vineyard site were sufficiently variable to affect fertility levels. Genotype is thought to determine the range of flowers per inflorescence that a variety can potentially carry, whereas actual flower number per inflorescence is thought to be determined by inflorescence primordium initiation and differentiation temperatures, as well as temperatures during budburst. Despite significant correlations between flower number per inflorescence and berry number per bunch, flower number per inflorescence preflowering for Cabemet Sauvignon, Shiraz and Chardonnay is inversely related to actual percentage fruit set. This is possibly a survival mechanism for the grapevine as it allows the vine to maximise yield each season without detriment to its longevity. Bunches per vine accounted for the majority of the seasonal variation in yield per vine. Fluctuations in bunch number per vine (and therefore yield) are likely to be reduced by varying the number of nodes retained per vine according to the relative fruitfulness per node present pre-pruning. This practice is therefore likely to result in the seasonal variation of berries per bunch becoming a stronger driver of yield. The commercial impacts of these studies are two-fold. Data presented will assist growers to understand the reasons for which their pruning regimes are affecting yield production and how these pruning regimes may be modified to achieve a target yield-particularly when growers are faced with seasons of low predicted fertility. In addition, data presented will allow growers to improve their crop forecasting accuracy, with a greater understanding of the link between bunch number and bunch size. In the current situation of oversupply in the wine industry, wineries are adopting a tough stance towards growers over-delivering on their grape contracts. Therefore, any assistance that can be provided to growers on improving accuracy of yield estimates will be beneficial both to the grower and winery. / http://proxy.library.adelaide.edu.au/login?url= http://library.adelaide.edu.au/cgi-bin/Pwebrecon.cgi?BBID=1352744 / Thesis (M.Ag.Sc.) -- University of Adelaide, School of Agriculture, Food and Wine, 2009

Submitted by Gustavo Gomes (gustavolascasas@gmail.com) on 2013-09-17T12:16:48Z No. of bitstreams: 2 A Nova Geografia Econ??mica tr??s ensaios para o Brasil.pdf: 1310322 bytes, checksum: 3f258950dd48382377323781b037cf47 (MD5) license_rdf: 23599 bytes, checksum: 9e2b7f6edbd693264102b96ece20428a (MD5) / Approved for entry into archive by Roger Guedes (roger.guedes@fjp.mg.gov.br) on 2013-09-17T13:48:42Z (GMT) No. of bitstreams: 2 A Nova Geografia Econ??mica tr??s ensaios para o Brasil.pdf: 1310322 bytes, checksum: 3f258950dd48382377323781b037cf47 (MD5) license_rdf: 23599 bytes, checksum: 9e2b7f6edbd693264102b96ece20428a (MD5) / Made available in DSpace on 2013-09-17T13:48:42Z (GMT). No. of bitstreams: 2 A Nova Geografia Econ??mica tr??s ensaios para o Brasil.pdf: 1310322 bytes, checksum: 3f258950dd48382377323781b037cf47 (MD5) license_rdf: 23599 bytes, checksum: 9e2b7f6edbd693264102b96ece20428a (MD5) Previous issue date: 2007 / Funda????o Jo??o Pinheiro / Esta tese tem como proposta analisar a desigualdade da distribui????o das atividades econ??micas e da renda per capita no Brasil, utilizando dados censit??rios para as microrregi??es do Nordeste, Sudeste e Centro-Oeste. Para isso, s??o apresentados tr??s artigos. No primeiro artigo, Acessibilidade e desigualdade regional no Brasil: uma proposta metodol??gica, prop??e-se um indicador de acessibilidade que ?? uma medida de mercado potencial, mas que considera as diferen??as de infra-estrutura existentes no Brasil. O segundo, Aglomera????es: quais seus fatores explicativos?, atrav??s de uma metodologia de an??lise de vari??ncia, procura responder quais os fatores explicativos das aglomera????es. Os resultados mostram que os principais fatores s??o os aglomerativos, corroborando com os argumentos da Nova Geografia Econ??mica. Diante disso, buscaram-se ind??cios de que o custo de transporte esteja no n??vel intermedi??rio, o que foi verificado. O terceiro artigo, Mercado potencial e crescimento econ??mico: evid??ncias para as microrregi??es do Sudeste, Nordeste e Centro-Oeste brasileiro, analisa se existem evid??ncias de que o acesso aos mercados influencia o diferencial de renda per capita existente entre as microrregi??es e se h?? heterogeneidade dos par??metros. Os resultados apontam para uma influ??ncia do acesso aos mercados sobre o diferencial de renda per capita. Essa influ??ncia ?? diferenciada entre as microrregi??es presentes no Sudeste e no Nordeste e Centro-Oeste. No Sudeste, h?? uma rela????o positiva, ou seja, quanto maior o acesso aos mercados maior o crescimento da renda per capita, enquanto para as microrregi??es do Nordeste e Centro-Oeste o resultado ?? inverso. / This thesis has three contributions: a) in the first paper, we develop a transportation cost index based on the market potential concept. b) In the second paper, we test if first or second nature causes determine agglomerations in our sample, which is composed by micro-regions of the Northeast, Southeast and Centre-West macro-regions in Brazil, in the period 1970-2000. We observe that second order causes directly or indirectly are the main determinants of agglomeration. We also collect evidence that transportation cost are at intermediate levels in these regions. c) In the third paper, we investigate if access to markets determines the (transitional) growth rate of per capita income. It does, but in a differentiated manner accordingly mainly to the macro-region from which the micro-region belongs. / Economia e Finan??as

As one of the largest public health system in the world, whose assumptions suggest: universal, full, equitable and free coverage, it is expected that the Unified Health System has its quality affected by several socioeconomic factors. Therefore, the objective of this research is to assess certain socioeconomic variables have impacts on the quality of the Unified Health System, as measured by the Unified Health System Development Index, in Brazilian municipalities, and also to know the magnitude and the direction of these impacts. From method of Ordinary Least Squares (OLS) were estimated the effects of the variables analyzed (spending on health per capita, Gross Domestic Product per capita, literacy rate, proportion of elderly proportion of motorcycles and biomes) on Unified Health System Development Index. The result that can be seen is that all variables have an impact on this index, with the expenditure on health per capita variable with the greatest impact on Unified Health System quality among the quantitative variables. The qualitative biome also impacts on the quality of Unified Health System, unlike the homogeneous groups of municipalities that did not have statistically significant coefficients. / Por ser um dos maiores sistemas públicos de saúde do mundo, cuja as premissas sugerem: cobertura universal, integral, igualitária e gratuita, acredita-se que o Sistema Único de Saúde (SUS) tenha sua qualidade afetada por diversos fatores socioeconômicos. Portanto, o objetivo desta pesquisa é avaliar se determinadas variáveis socioeconômicas municipais têm impactos na qualidade do Sistema Único de Saúde, medido pelo Índice de Desenvolvimento do SUS (IDSUS), nos municípios brasileiros, e, também, de saber qual a magnitude e a direção desses impactos. A partir do método dos Mínimos Quadrados Ordinários (MQO) foram estimados os efeitos das variáveis analisadas (gasto com saúde per capita, Produto Interno Bruto (PIB) per capita, taxa de analfabetismo, proporção de idosos, proporção de motocicletas e biomas) sobre o IDSUS. O resultado que se pode constatar é que todas as variáveis analisadas têm algum impacto sobre o referido índice, sendo o gasto com saúde per capita a variável com maior impacto na qualidade do SUS, dentre as variáveis quantitativas analisadas. A variável qualitativa bioma também tem impacto sobre a qualidade do SUS, diferentemente dos grupos homogêneos de municípios, que não tiveram coeficientes estatisticamente significantes.

Family structure affects not only household income but can influence how revenues contributeto financial satisfaction. That is to say, it is possible that a certain family structure can be more efficient in producing satisfaction than another. Using microdata from the National Household Survey (ENAHO) 2013, a probit econometric model is proposed for urban households in Peru, in which the likelihood of satisfaction with household income is a function of income itself, both in absolute terms and relative to other households, and of various household characteristics, including aspects of family structure. Analysis of ENAHO 2013 reveals that 80.2% of house- holds report being satisfied with their income; satisfaction levels among lone parents are the lower than in other groups (77.3%) and the highest satisfaction levels are reported by married couples with children and cohabiting couples with children (82.8% and 80.3% respectively). Results of the regression model support the conclusions of other studies, in that per capita hou- sehold income has a positive impact on the probability of income satisfaction; however, it is not the only significant variable. In particular, we have found evidence that the difference between household expenditure and average household expenditure in the region (a measure of relative expenditure) also influences the likelihood of income satisfaction, as well as changes in household economy relative to that of other households in the area. Regarding family structures considered in the study, households of married couples with children, cohabiting couples with children, and cohabiting couples without children are less responsive than other households in several variables: number of household members, income per capita, difference between household expenditure and the regional average, and university education of the household head. In single- parent households in general, satisfaction with income is particularly sensitive to changes in the number of household members, per capita income, difference between household expenditure and the regional average, university education of the household head, and perception of declinein household living standards relative to other households in the area. / La estructura familiar no solo afecta los ingresos del hogar, sino que puede influir en la maneracomo los ingresos contribuyen a la satisfacción financiera. Es decir, para un mismo nivel de ingresos, es posible que una estructura familiar sea más eficiente en producir satisfacción que otra. Utilizando los microdatos de la Encuesta Nacional de Hogares (Enaho) 2013, se plantea un modelo econométrico tipo probit, para los hogares urbanos en Perú, en que la probabilidad de satisfacción con los ingresos del hogar es una función del ingreso mismo, tanto en términos abso- lutos como en relación con los demás hogares, y de diversas características del hogar, incluyendo aspectos de la estructura familiar. El análisis de la Enaho 2013 revela que el 80,2% de los hogares indica estar satisfecho con sus ingresos; los niveles de satisfacción de los hogares monoparentales son los menores entre los grupos (77,3%) y los niveles más altos son reportados por los casados con hijos y convivientes con hijos (82,8% y 80,3% respectivamente). Los resultados del modelo de regresión respaldan las conclusiones de otros estudios, según los cuales el ingreso per cápita del hogar tiene un impacto positivo en la probabilidad de satisfacción con los ingresos del hogar; sin embargo, no es la única variable significativa. En especial, se ha encontrado evidencia de que la diferencia del gasto del hogar respecto al gasto promedio de los hogares de la región (una medida de gasto relativo) también influye sobre la probabilidad de satisfacción con los ingresos, así como la evolución de la economía del hogar en comparación con la de los demás hogares de la localidad. Por lo que se refiere a las estructuras familiares consideradas en el estudio, los hogares casados con hijos, convivientes con hijos y convivientes sin hijos se han mostrado menos sensibles que el resto de hogares en diversas variables: número de miembros del hogar, ingreso per cápita, diferencia del gasto del hogar respecto al promedio regional, percepción de deterioro relativo del nivel de vida del hogar y estudios universitarios del jefe de hogar. En los hogares monoparentales, en general, la satisfacción con los ingresos se muestra especialmente sensible frente a cambiosen número de miembros del hogar, ingreso per cápita, diferencia del gasto del hogar respecto al promedio regional, estudios universitarios del jefe del hogar y percepción de deterioro del nivel de vida del hogar relativo a otros hogares de la zona.

Na primeira década dos anos 2000, houve uma intensa expansão do setor sucroenergético no Estado de São Paulo. O objetivo desse trabalho é avaliar os impactos socioeconômicos dessa expansão, tendo como base a representação de bem-estar social proposta por Deaton & Muellbauer (2009). Os impactos da expansão do setor sucroenergético sobre o nível médio da renda per capita e sobre sua distribuição entre os municípios paulistas foi estimado através de um modelo de painel espacial dinâmico desenvolvido a partir da decomposição da renda per capita em seus principais determinantes proposta por Barros et al. (2004). Além da proporção de adultos na população municipal, da taxa de utilização da força de trabalho e do rendimento médio dos vínculos empregatícios, também foram incluídas como variáveis de controle no modelo a taxa de utilização da força de trabalho na agropecuária e o rendimento médio dos vínculos empregatícios na agropecuária. Adicionalmente, para isolar os impactos socioeconômicos da expansão do setor sucroenergético, a participação da agropecuária na área do município, a participação da agricultura na área da agropecuária, a participação da cana-deaçúcar na área da agricultura e uma dummy para os municípios com usina em operação foram incluídas no modelo. As séries abrangem os 645 municípios paulistas no período de 2000 a 2008. Os resultados do modelo Método Generalizado de Momentos em Sistema GMM-SYS evidenciam a existência de relação de dependência espacial e temporal positiva no PIB real per capita. Os efeitos diretos e indiretos estimados indicam que a expansão do setor sucroenergético apresentou um impacto positivo sobre o nível médio da renda per capita e, como a expansão do setor ocorreu em municípios de PIB real per capita inferior à média paulista, também sobre sua distribuição. Dessa forma, constatou-se que a expansão do setor sucroenergético apresentou um impacto socioeconômico positivo. / The Brazilian sugarcane sector experienced an intense expansion in Sao Paulo State during the 2000s. The aim of this study is to evaluate the socioeconomic impacts of such expansion, based on the social welfare representation proposed by Deaton & Muellbauer (2009). The impacts of sugarcane sector expansion over the average per capita income and over its distribution between Sao Paulo States municipalities were estimated through a dynamic spatial panel developed from the decomposition of per capita income into its main determinants proposed by Barros et al. (2004). Besides the municipal rate of adults in the population, rate of workforce employment and average wage, two other variables were included in the model to control regional differences observed in Sao Paulo States economy: rate of workforce employment in agriculture and farming A&F and its respective average wage. Additionally, in order to determine the socioeconomic impacts of the sugarcane sector expansion, the share of A&F in the municipal area, the share of agriculture in A&F area, the share of sugarcane in agriculture area and a dummy for cities with mills in operation were also included in the model. The balanced panel for the 645 cities in Sao Paulo State ranges from 2000 to 2008. The results of the system generalized method of moments GMM-SYS highlight that per capita GDP presents positive lags in both time and space. The estimated direct and indirect effects indicate that sugarcane sector expansion had a positive impact over the average per capita income and, then, also over its distribution throughout Sao Paulo State since sugarcane sector expansion occurred mainly in cities with per capita GDP lower than the States average. Accordingly, the conclusion of this study is that sugarcane sector expansion that occurred between 2000 and 2008 presented a positive socioeconomic impact in Sao Paulo State.

Orientador: Tirza Aidar, José Marcos Pinto da Cunha / Dissertação (mestrado) - Universidade Estsadual de Campinas, Instituto de Filosofia e Ciências Humanas / Made available in DSpace on 2018-08-17T16:23:03Z (GMT). No. of bitstreams: 1 Pereira_JuliaModestoPinheiroDias_M.pdf: 1907963 bytes, checksum: 6c50d734a8787e894f66629b7cd35052 (MD5) Previous issue date: 2011 / Resumo: Diante da crescente importância que os programas de transferência de renda vêm apresentando nos últimos anos, cabe perguntar. Será que eles têm gerado influência em áreas que não eram pretendidas? Pensando que os fluxos migratórios diferenciam-se conforme a realidade sócio-econômica e que devido às desigualdades regionais as pessoas se locomovem em busca de melhores condições de vida, faz sentido pensar que os programas que visam melhorar a condição de vida da população e por conseqüência amenizar tais desigualdades, podem acabar por influenciar a migração? Esta dissertação pretende buscar indícios de que programas de transferência de renda como a Aposentadoria Rural, o Benefício de Prestação Continuada e, principalmente, o Programa Bolsa Família (PBF), tem influenciado na dinâmica migratória no estado da Bahia. Visando o alcance desse objetivo foram analisadas informações dos Censos Demográficos de 1991 e 2000, que cobrem o início e consolidação dos dois primeiros programas, e das PNAD's 2004 e 2009, período de implementação e crescimento da cobertura do PBF. Por intermédio de análises descritivas, contando também com registros de origem administrativa, avaliou-se a importância dos programas para a economia dos municípios baianos e o crescimento populacional vis a vis os Índices de Eficácia Migratória, segundo porte municipal e estrato de renda domiciliar per capita. Por último, analisou-se também o peso das transferências na composição da renda domiciliar, conforme o status migratório dos chefes de domicílio. Os resultados mostram indícios de maior retenção migratória, bem como um crescimento populacional diferenciado entre a população de baixa renda, principalmente nas cidades pequenas e médias e nas áreas rurais, onde se observa também maior importância do Programa Bolsa Família, que cresce na composição da renda entre os imigrantes de retorno / Abstract: In face of the growing importance that income transfer programs have been showing in the last years, it's suitable to ask: Have them shown importance in areas for which they were not intended? Thinking that migratory fluxes distinguish from one another accordingly to the economic and social reality of each one and that as a consequence of social inequality people move in the search for social mobility, it makes sense to think that the programs which intend to improve population life condition and as consequence eases such inequalities, may influence in migration? This dissertation intends to seek some sign that income transfer programs such as Rural Retirement, the Continued Provision Benefit and above all the Bolsa Família Program, have been influencing in the migratory dynamics of the state of Bahia. In the search for such an objective it will be utilized the Demographic Census of 1991 and 2000, which covers the beginning of the consolidation of the first two programs, and the PNAD's of 2004 and 2009, the period of implementation and growth of BFP. By means of descriptive analysis, relying also on the records of administrative origin, it was evaluated the importance of such programs to the economy of Bahia municipalities and the population growth in face to the Index of Migratory Efficiency, according to the municipality size and per capita house income cut. Finally, it was analyzed also the importance of the transferences in the composition of house income, according to the migratory status of the house head. The results show the bigger migratory retention, as well as a differentiated population growth between the low income population, mainly in small and average cities in rural areas, where it can be observed the greater importance of Bolsa Família Program, which grows in the income composition of return immigrants / Mestrado / Demografia / Mestre em Demografia

nÃo hà / A tese intitulada âTrÃs Ensaios em Macroeconometriaâ à composta de trÃs capÃtulos. O primeiro capÃtulo aplica um modelo em painel dinÃmico para analisar a convergÃncia da taxa de crescimento do PIB per capita, numa abordagem nÃo linear atravÃs de um efeito threshold para os vinte e seis Estados brasileiros mais o Distrito Federal, durante o perÃodo 1985-2005. Os resultados indicam a existÃncia de dois clubes de convergÃncia, um formado pelos estados que se encontram no regime de baixa renda, formado pelos estados da regiÃo nordeste, norte (com exceÃÃo do estado do Amazonas) e o estado de GoiÃs, enquanto que o outro clube à formado por aqueles que se encontram no regime de alta renda, compostos pelos estados da regiÃo sul e sudeste, mais os estados de Mato Grosso, Mato Grosso do Sul e o Distrito Federal. No segundo capÃtulo aplica-se uma formulaÃÃo de tendÃncias comuns Ãs variÃveis PIB real, taxa de juros SELIC nominal, oferta monetÃria do agregado M1 e taxa de inflaÃÃo IPCA, para extrair uma medida de nÃcleo de inflaÃÃo com caracterÃsticas fowardlooking. ApÃs determinar o nÃcleo de inflaÃÃo para o IPCA, testam-se as condiÃÃes para uma medida de nÃcleo segundo Marques et al. (2003) juntamente com duas outras medidas de nÃcleo fornecidas pelo Banco Central do Brasil. Por Ãltimo testam-se a acurÃcia de previsÃes fora da amostra feitas por essas medidas para o IPCA. Os resultados confirmam que a medida de nÃcleo por tendÃncias comuns tem um bom poder preditivo. O terceiro capÃtulo testa a hipÃtese da paridade do poder de compra (PPP) para o Brasil durante o perÃodo de 1985 a 2008 atravÃs da aplicaÃÃo dos testes de raiz unitÃria em painel com dependÃncia transversal apresentados em Moon e Perron (2004) e Pesaran (2007). Utiliza-se como base de dados o Ãndice de inflaÃÃo INPC para nove regiÃes metropolitanas: Belo Horizonte, BelÃm, Curitiba, Fortaleza, Porto Alegre, Recife, Rio de Janeiro, SÃo Paulo e Salvador. Os resultados mostram mudanÃa de persistÃncia apÃs a implementaÃÃo do Plano Real. Enquanto que no perÃodo de alta inflaÃÃo a hipÃtese de Paridade do Poder de Compra PPP à satisfeita, no perÃodo de estabilizaÃÃo de preÃos a PPP nÃo à satisfeita. Este resultado à fortalecido atravÃs da anÃlise das estatÃsticas descritivas dos dados. / The thesis entitled "TrÃs Ensaios em Macroeconometria" is composed of three chapters. The first chapter applies a dynamic panel model to analyze the convergence rate of growth of GDP per capita, non-linear approach using a threshold effect for the twenty-six Brazilian states plus the Distrito Federal during the period 1985-2005. The results indicate the existence of two convergence clubs, one formed by the states that are in the regime of low income, formed by the Northeast region, north (with the exception of the state of Amazonas) and the state of GoiÃs, while other club consists of those who are in the regime of income, formed by the states of South and Southeast, over the states of Mato Grosso, Mato Grosso do Sul and Distrito Federal. The second chapter presents a formulation of common trends in the variables real GDP, nominal interest rate Selic, money supply of M1 and IPCA inflation rate, to extract a measure of core inflation with features foward-looking. After determining the core inflation for the IPCA, we tested the conditions for a measure of core second Marques et al. (2003) along with two other core measures provided by the Banco Central do Brasil. Finally, we tested the accuracy of forecasts out of sample made by these measures to the IPCA. The results confirm that the measure of core inflation by common trends have a good predictive power. The third chapter tests the hypothesis of purchasing power parity (PPP) in Brazil during the period 1985 to 2008 by applying the unit root tests in panel with cross section dependence presented in Moon and Perron (2004) and Pesaran (2007 ). We tested the index of inflation INPC for nine metropolitan areas: Belo Horizonte, BelÃm, Curitiba, Fortaleza, Porto Alegre, Recife, Rio de Janeiro, SÃo Paulo and Salvador. The results show a change in persistence after the Plano Real. While in the period of high inflation the PPP is satisfied, the period of stabilization of prices to PPP is not satisfied. This result is strengthened by examining the descriptive statistics of the data.