What is it about?

A new index that will enable policymakers and urban planners to accurately measure the success of their past slum management policies. In addition, planners would also be able to design low-cost housing programmes at a spatial and temporal scale based on the needs of the population.

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Why is it important?

Today, over half of the world’s population lives in urban areas and it is projected that, by 2050, two out of three people will live in a city. Urban reforms are now aiming to improve the conditions in these slums and therefore it is very important to have reliable tools to measure the changes that are underway. In this paper, we use exploratory factor analysis to define an index of shelter deprivation in Mexico City, namely the Slum Severity Index (SSI), based on the UN-HABITAT’s definition of a slum.


This provides a generic framework to monitor and measure poverty. The index can be used to measure the impact of slum management and pro-poor policies. It should be one of the key performance indicators of any policies in an urban setting.

Debraj Roy
Universiteit van Amsterdam

Read the Original

This page is a summary of: An exploratory factor analysis model for slum severity index in Mexico City, Urban Studies, September 2019, SAGE Publications,
DOI: 10.1177/0042098019869769.
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