Ruíz Guillermo, Angela, Francisco Gómez García, and Luis Palma Martos. “Worldwide Fiscal Progressivity: What Can We Learn from Subjective Wellbeing Economics?”. Scientific Annals of Economics and Business 70, no. SI (February 9, 2023): 121–135. Accessed March 22, 2025. https://saeb.feaa.uaic.ro/index.php/saeb/article/view/1809.