Long-Run Relationship between Exports and Imports: Current Account Sustainability Tests for the EU
António Afonso, Florence Huart, João Tovar Jalles, Piotr Stanek
Portuguese Economic Journal, vol. 19, 2020, p. 155-170.

Assessing the sustainability of external imbalances in the European Union.
António Afonso, Florence Huart, João Tovar Jalles, Piotr Stanek
World Economy, vol. 42, 2019, p. 320-348.