Karakotsios, A., Katrakilidis, C., Dimitriadis, D., & Christoforidis, T. (2020). Examining the relationship between income inequality, taxation and economic freedom: a panel cointegration approach. Economics and Business Letters, 9(3), 206–215. https://doi.org/10.17811/ebl.9.3.2020.206-215