This Tuesday evening at 7:05 p.m., Justin Wolfers, an economics professor at the University of Michigan, started a provocative Twitter thread about panic buying. Spurred by fear of the spreading coronavirus, shoppers have been mobbing stores worldwide. They’re stockpiling canned goods, flour, sugar, bottled water, hand sanitizer—and toilet paper

这个星期二晚上7点05分。密歇根大学(University of Michigan)经济学教授贾斯廷·沃尔弗斯(Justin Wolfers)在Twitter上发布了一个有关恐慌性购买的帖子，引发了争议。由于对冠状病毒传播的恐惧，购物者们蜂拥至世界各地的商店。他们储备了罐装食品、面粉、糖、瓶装水、洗手液和卫生纸。