The Democracy Index measures how democratic individual US states are based upon variables such as seats-to-votes ratios.
Is there such a measure anywhere for countries? This could be tallied with foreign trade, international aid receipts or donations and local subsidies to quantitatively measure an ‘ally’ (i.e. how much a country puts its money where its mouth is) and create a ‘Global Ally of Democracy’ index.
If a country is both highly democratic and favors aid and trade to other countries which are also highly democratic without imposing tariffs or subsidizing domestic production then it would score highly as a Global Ally of Democracy.