Omission is usually some information that is left out or something that is not done. It most often refers to an intentional action. "He failed to give important details in his court testimony. That was quite an intentional omission." Missing, as it compares to omission, usually refers to something that has been lost, but is has other meanings
Authorities believe Alex Batty, a U.K. teen who went missing six years ago while on vacation in Spain, has been found in France. Batty, now 17 years old, was found in Revel, not far from Toulouse
A Difference-in-Difference (DID) event study, or a Dynamic DID model, is a useful tool in evaluating treatment effects of the pre- and post- treatment periods in your respective study. However, since treatment can be staggered — where the treatment group are treated at different time periods — it might be challenging to create a clean event T8nKHv.