Zack Liu

• [2026 JFE] 事件研究里的「假阳性」：当一根 t 值不再等于因果Past is Prologue: Inference from the Cross Section of Returns Around an EventMay 2026
• [2022 JFE] 为了留住那些「零」，我们把结论的符号弄反了Count (and Count-like) Data in FinanceSep 2022