Bloomberg ranked countries based on the stressfulness of their living environments.
Seven equally weighted variables were considered: homicide rates, GDP per capita on a purchasing-power-parity basis, income inequality, corruption perception, unemployment, urban air pollution and life expectancy. Income inequality was measured by the Gini Index, where a score of 0 represents perfect equality and 100 perfect inequality. Corruption perception refers to Transparency International's Corruption Perceptions Index, which scores countries on a scale of 0 to 100, with 0 being the most corrupt. Urban outdoor air pollution is the annual mean concentration of fine particles smaller than 10 microns, measured in micrograms per cubic meter. Countries were allotted points for each variable based on their relative position in that category's ranking. The country with the least-stressful measure for each variable received 0 points, while the country with the highest stress level received 100 points. All other countries were scored on a percentile basis depending on their position between the two extremes. Points for the seven variables were averaged for a final score from 0 to 100, a higher score indicating a more stressful living environment. All data were the latest available. Only countries with data available for all seven variables were included.
United Nations Office on Drugs and Crime, International Monetary Fund, Central Intelligence Agency World Factbook, Transparency International, World Health Organization
May 10, 2013