Guedes de Oliveira F, Costa L. The VAT Laffer Curve and the Business Cycle in the EU27: An Empirical Approach. EI [Internet]. 2015 Sep. 1 [cited 2026 Jul. 26];20(2):29-44. Available from: https://www.economicissues.org.uk/index.php/EI_OJS/article/view/242