Report of the EFS Seminar ‘50 Years of the EU Customs Union and EU VAT System: Developments, Challenges and Alternatives’ Held on 14 February 2019, at the Erasmus University Rotterdam - EC Tax Review View Report of the EFS Seminar ‘50 Years of the EU Customs Union and EU VAT System: Developments, Challenges and Alternatives’ Held on 14 February 2019, at the Erasmus University Rotterdam by - EC Tax Review Report of the EFS Seminar ‘50 Years of the EU Customs Union and EU VAT System: Developments, Challenges and Alternatives’ Held on 14 February 2019, at the Erasmus University Rotterdam 28 4 EC Tax Review