波动率指数是否削弱了黄金在COVID-19大流行前后对投资者的避险吸引力？

Do volatility indices diminish gold's appeal as a safe haven to investors before and during the COVID-19 pandemic?

• Muhammad Shahbaz 通讯
• Tauhidul Islam Tanin
• Ashutosh Sarker
• Shawkat Hammoudeh