This dataset maps codes representing countries to regions. It is similar to
but smaller than region_isos.
Demo datasets are synthetic because most financial data is strictly private;
they help to demonstrate and test the implementation in R of 'PACTA'
(https://2degrees-investing.org/resource/pacta/).
For information about the ISO standard for country codes see
https://www.iso.org/iso-3166-country-codes.html.