Sub-Saharan Africa and Emerging Asia lead the pack over an 8-year term in improving its citizens lives, while Western Europe remains at the top of the current index

Josh Robinson:

The SEDA, or Sustainable Economic Development Assessment ranks more than 160 countries across 10 areas including economic stability, health, governance and environment. It uses two measures, the first a current score taking into the most recent data and a rolling score that assesses how countries can convert economic growth into well-being over an eight year period from 2006 to 2014.