'event window' is a correct and usable phrase in written English.
It is often used to refer to a period of time in which a particular event or process takes place. For example, "We have a two-week event window for the promotion of our new product."
In this two-day event window the average cumulative abnormal return (CAR)—that is, the stock return in excess of the "normal" market return was 0.67%.
Thus, Dr. Hakala's use of a shorter event window here represents a proper limitation connected to the facts of this case.
This analysis finds a significant negative market reaction to the subsequent filings, consistent with an incomplete reaction during the NT filing event window.
All other periods before and after the two-day event window yield insignificant CARs, which confirms that the results are not driven by unrelated trends around the time of the announcement.
Using a sample of 162 twin A/B-shares issued by 81 listed firms, we find that the portfolio of B-shares, which are treated and held in large volumes, obtains a significant positive treatment effect of 2.08% relative to that of A-shares over a 3-day event window.
The capability of the PEEP approach to enhance temporal resolution of monitoring is demonstrated by the determination of the timing of the 100-mm bank erosion incident to an ' event window ' of 2·75 h: this converts to mean bank erosion rate of 36 mm h−1over the period of inundation.
Its pre- and post-conversion performance is analyzed using symmetric event windows covering three-year periods before and after the focused hospital unit (FHU) was established.
We compute abnormal stock returns for firms headquartered in California and a matched group of control firms for different event windows surrounding the days of the gender quota's adoption and announcement in California.
Secondly, the authors conduct a robustness test with different event windows.
As a result, it is assumed that all significant Abnormal Returns within the Pre-Event Window might imply insider trading activity.
For the sake of demonstration, the Pre-Event Window (Fig. 3) was set to 30 transaction days, equivalent to approximately 40 calendar days.
