Chinese Abstract: 摘要：中共中央政治局在 3 月 27 日召开会议中多次强调通过发行特别国债和地方债应对此 次疫情，助力复工复产。为保障“抗疫”的特别债券发行，需要研究并学习已发行债券的...

The restriction of short-sale prices, which stated that short-sale prices must not be lower than the closing price of the previous trading day, no longer applies to the constituent stocks of the Taiwan Top 50 Index. This study investigates the abnormal returns and volatility changes of those...