Figure 5
The effect of different events and processes on air passenger mobility: (a) visa waiver agreements strengthening mobility rights of Cape Verdeans, (b) the lift of a flight ban between Russia and Turkey, (c) the introduction of a new budget airline connection between Bosnia and Herzegovina and Germany, (d) the revolution and coup d’état in Egypt, (e) the economic crisis in Venezuela, and (f) the civil war in Syria. In all graphs, the amount of passengers (y-axis) is normalized, with the initial value set to 1