MEHER, B. K.; HAWALDAR, I. T.; GIL, M. T.; DUM, D. Z. Measuring Leverage Effect of Covid 19 on Stock Price Volatility of Energy Companies Using High Frequency Data. International Journal of Energy Economics and Policy, [S. l.], v. 11, n. 6, p. 489–502, 2021. Disponível em: https://www.econjournals.com/index.php/ijeep/article/view/11866. Acesso em: 19 apr. 2024.