Research
Research on visa requirements and international mobility.
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Wealth, Geopolitics, and the Great Mobility Divide
By Omer Zarpli and Ugur Altundal. Published in Global Mobility Report 2022 Q1. While most countries have increased their visa-free access since 2006, some regions and nations have performed significantly better than others. By…
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International Travel Shows Faint Signs of Life
By Ugur Altundal and Omer Zarpli. Published in Global Mobility Report 2021/Q3. Although halfway through 2021 most countries maintain relatively open borders, except to visitors from high-risk countries, the situation remains extremely volatile.…
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Airport Traffic in the US (2019 vs. 2020)
This graph highlights a significant decrease in air travel due to Covid-19 pandemic. It displays the number of daily transits (and the 5-day moving average) through airports in the US in 2020 and 2019, based…
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International Travel and the Spread of Covid-19
The scatterplots below show that countries that are more open to international travel have been affected by Covid-19 more. In addition to the number of tourist arrivals, cover-19 cases, and population, countries are…
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