Desterritorialización y reterritorialización : sobre el reconocimiento político del territorio indígena en Colombia

Análisis de las lógicas espaciales del reconocimiento del territorio indígena en Colombia a través de procesos de reterritorialización y codificación coloniales, y de procesos de desterritorialización a través de la distinción política y disyunción de la codificación estatal por parte de la multiplicidad indígena.

Mobilidade espacial nas Metrópoles Brasileiras: complexidade do espaço urbano

As transformações na dinâmica demográfica ocorrida nas últimas décadas nos espaços urbanos passam, em grande medida, pela reconfiguração territorial, econômica e social das áreas metropolitanas, na qual os movimentos das pessoas exercem influência fundamental. Para este trabalho, propomos uma abordagem sobre o movimento migratório intra-metropolitano em 14 áreas metropolitanas brasileiras, quais sejam: Belém, Belo Horizonte, Brasília, Campinas, Curitiba, Florianópolis, Fortaleza, Goiânia, Porto Alegre, Recife, Rio de Janeiro, Salvador, São Paulo e Vitória; questionamos se este fenômeno estaria alterando a histórica “pressão pelas áreas centrais metropolitanas” ou se essa população está mudando de residência, mas continua trabalhando no núcleo. Pensando sobre os movimentos da população ocupada nas regiões metropolitanas, buscamos ainda considerar os tipos de movimentos realizados (núcleo-periferia; periferia-núcleo e periferia-periferia) com uma caracterização desta população. Portanto, nossa reflexão está relacionada às diferentes lógicas que operam sobre o lugar de moradia das pessoas e os lugares de outros fazeres que determinam a vida urbana, especialmente o lugar de trabalho. A localização dos postos de trabalho em áreas mais “centrais” e a quantidade considerável de pessoas que se deslocam para estes municípios também são fenômenos expressivos ainda. Será que os movimentos cotidianos podem se apresentar como uma alternativa para a residência em outras áreas da metrópole e o trabalho nas áreas centrais? Nossa proposta é a de que esses processos precisam ser analisados cada vez mais em conjunto com a migração intra-metropolitana.

Spatial Inequalities and Social Utility: Mobility Efforts and Accessibility in Greater Santiago

Emergent phenomena such as urban sprawl, travel intensification and loss of cohesion in contemporary metropolises, impose stronger constraints on its inhabitants. Among them, travel and location capabilities become a fundamental factor of social integration and a multiplier of income inequalities. The simultaneous analysis of housing-travel efforts and accessibility to urban opportunities in Greater Santiago shows that these dimensions are closely related and exert an important influence on spatial mobility and inequalities among its inhabitants. Furthermore, a theoretical model of displacements, considering income and location, confirms the importance of proximity and non-motorized transport in order to optimize daily mobility strategies of households. Overall, the empirical and theoretical results presented show the need to implement coordinated planning strategies between the housing and transport sectors, addressing not only travel acceleration, but mainly the consistency between accommodation and opportu  ties location. The creation of such planning tools could be a more sustainable alternative than current growth trends in Greater Santiago.

Neighborhood characteristics and the spatial concentration of crime: Evidence for Bogotá

Using a unique neighborhood crime dataset for Bogotá in 2011, this study uses a spatial econometric approach and examines the role of socioeconomic and agglomeration variables in explaining the variance of crime. It uses two different types of crime, violent crime represented in homicides and property crime represented in residential burglaries. These two types of crime are then measured in non-standard crime statistics that are created as the area incidence for each crime in the neighborhood. The existence of crime hotspots in Bogotá has been shown in most of the literature, and using these non-standard crime statistics at this neighborhood level some hotspots arise again, thus validating the use of a spatial approach for these new crime statistics. The final specification includes socioeconomic, agglomeration, land-use and visual aspect variables that are then included in a SARAR model an estimated by the procedure devised by Kelejian and Prucha (2009). The resulting coefficients and marginal effects show the relevance of these crime hotspots which is similar with most previous studies. However, socioeconomic variables are significant and show the importance of age, and education. Agglomeration variables are significant and thus more densely populated areas are correlated with more crime. Interestingly, both types of crimes do not have the same significant covariates. Education and young male population have a different sign for homicide and residential burglaries. Inequality matters for homicides while higher real estate valuation matters for residential burglaries. Finally, density impacts positively both crimes.

Racial and spatial interaction for neighborhood dynamics in Chicago

We look at at the empirical validity of Schelling’s models for racial residential segregation applied to the case of Chicago. Most of the empirical literature has focused exclusively the single neighborhood model, also known as the tipping point model and neglected a multineighborhood approach or a unified approach. The multi-neighborhood approach introduced spatial interaction across the neighborhoods, in particular we look at spatial interaction across neighborhoods sharing a border. An initial exploration of the data indicates that spatial contiguity might be relevant to properly analyse the so call tipping phenomena of predominately non-Hispanic white neighborhoods to predominantly minority neighborhoods within a decade. We introduce an econometric model that combines an approach to estimate tipping point using threshold effects and a spatial autoregressive model. The estimation results from the model disputes the existence of a tipping point, that is a discontinuous change in the rate of growth of the non-Hispanic white population due to a small increase in the minority share of the neighborhood. In addition we find that racial distance between the neighborhood of interest and it surrounding neighborhoods has an important effect on the dynamics of racial segregation in Chicago.