Abstract
In early 2006 the Swiss migration-specialist company Henley and Partners released a global ranking of visa-free travel privileges. The present paper comprises an exploratory analysis of the data, despite the lack of information as to how or when it was originally compiled. The initial hypothesis – that the ability for citizens to travel to other countries visa-free is based on the wealth and openness of their own country – is confirmed. The bulk of the world's countries, and indeed population, have very little travel freedom. A measure of global travel freedom combining the Henley data with national population figures is proposed. Any more comprehensive investigation requires the full release, or re-construction, of the dataset and knowledge of how it was compiled.

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