Derbali A, Saleh HA. Comparative risk analysis by VaR: an empirical application to ethical market indices. Quant. Econ. Manag. Stud. [Internet]. 2020 Nov. 24 [cited 2026 May 19];1(6):399-410. Available from: https://qemsjournal.org/index.php/qems/article/view/220