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The Lumen Gini Coefficient: a satellite imagery derived human development index

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Author(s): C. D. Elvidge | K. E. Baugh | S. J. Anderson | P. C. Sutton | T. Ghosh

Journal: Social Geography Discussions
ISSN 1816-1499

Volume: 8;
Issue: 1;
Start page: 27;
Date: 2012;
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ABSTRACT
The "Lumen Gini Coefficient" is a simple, objective, spatially explicit and globally available empirical measurement of human development derived solely from nighttime satellite imagery and population density. There is increasing recognition that the distribution of wealth and income amongst the population in a nation or region correlates strongly with both the overall happiness of that population and the environmental quality of that nation or region. Measuring the distribution of wealth and income at national and regional scales is an interesting and challenging problem. Gini coefficients derived from Lorenz curves are a well-established method of measuring income distribution. Nonetheless, there are many shortcomings of the Gini coefficient as a measure of income or wealth distribution. Gini coefficients are typically calculated using national level data on the distribution of income through the population. Such data are not available for many countries and the results are generally limited to single values representing entire countries. In this paper we develop an alternative measure of the distribution of "human development", called the "Lumen Gini coefficient", that is derived without the use of monetary measures of wealth and is capable of providing a spatial depiction of differences in development within countries.
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