Elgammal, Mohammed, and Basil Al-Najjar. “THE LEVERAGE EFFECT ON THE VALUE PREMIUM VOLATILITY: FROM AN INTERNATIONAL PERSPECTIVE”. Studies in Business and Economics (SBE) 18, no. 1 (March 1, 2015). Accessed February 10, 2026. https://journals.qu.edu.qa/index.php/SBE/article/view/635.