So, with attractiveness scores of all the countries on the planet set, we then could measure any passport’s quality as a travel document.
Back to our hypothetical example:
According to our calculations, passport A has a Travel Freedom score of 25.85 (the number we get after adding the attractiveness scores of China and France).
And passport B has a Travel freedom score of 0.00367 (after adding the attractiveness scores of Comoros and Tuvalu).
We see that passport A as a travel document is 6,812 times (25.85 / 0.00367) more valuable than passport B.
This is a much better way to measure a passport’s quality as a travel document than simply counting its number of visa-free country access.
Still, we felt like something was missing in our formula.
Of course, we still need to account for the passport’s country itself…
Say you are an American citizen.
Naturally, you have full access to your own country – all the way from Anchorage to Key West and even Guam and Puerto Rico.
And since you have access to your own country, we should include the United States’ attractiveness score of 20.11 in the US passport’s final Travel Freedom score as well.
To finish with the example:
So, if passport A belongs to the United States, then the passport’s Travel Freedom score is not 25.85, but rather 45.96 (25.85 + 20.11) after we add in the USA’s own attractiveness score.
The same applies to all other passports.
We added China’s attractiveness score of 13.84 to the Chinese passport’s Travel Freedom score, 12.01 to the French passport’s Travel Freedom Index, and so on.