Testing Stability in Functional Event Observations with an Application to IPO Performance
事件时点观测的函数型数据稳定性检验及 IPO 表现应用
Many sequentially observed functional data objects are available only at the times of certain events. For example, the trajectory of stock prices of companies after their initial public offering (IPO) can be observed when the offering occurs, and the resulting data may be affected by changing circumstances. It is of interest to investigate whether the mean behavior of such functions is stable over time, and if not, to estimate the times at which apparent changes occur. Since…