A stepwise tool for spatial delineation of marginal areas. Medellin (Colombia) as a case study
Duque, Juan C.
Duque, Juan C. (firstname.lastname@example.org)
Royuela, V. (email@example.com)
Noreña, M. (firstname.lastname@example.org)
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The analysis of intra-urban socioeconomic differences is placed as a hot topic in economic geography. The determination of the spatial scale at which these types of analysis are made is a commonly underestimated decision that can lead to wrong conclusions, wrong decisions and wrong allocation of resources. In this paper we use data about slumness characteristics of housing units in Medellín (Colombia) to introduce a stepwise procedure to determine the scale at which urban slums can be delineated. We illustrate the goodness of using the so-called “analytical regions” as a suitable spatial configuration for studying socioeconomic phenomena. We use the max-p-regions algorithm, devised by Duque et al. (2012), to build analytical regions that supersede the use of administrative neighbourhoods and guarantee a proper balance between the robustness obtained by working with large regions and the maximum spatial detail that avoids ecological inference