We performed a metadata analysis on

We performed a metadata analysis on the existing peer-reviewed
literature that calculated time series GPI/capita and ISEW/capita at the
national level. We found studies for 17 countries, for portions of the
period between 1950 and 2010. However, methodological differences
existed within the primary studies. For instance, many GPI studies
used the Gini coefficient to estimate the inequality index. The U.K. and
Swedish studies used the Atkinson index directly to estimate welfare
loss. Some studies count cumulative GHG emission damage; others do
not. However, we aggregated these studies with the assumption that
they were sufficiently comparable on the basis that the underlying
methodologies were similar.
We also assembled data on