I have a data set of companies with the date they were acquired by a business group and a control group in which the companies have been in their business group since their creation. Each company has as many observations as the years between the creation date of the company and 2018 and a dummy variable that is 1 between the acquisition date and 2018. For the control group the dummy variable is 0 in all observations.

I also used one-to-one propensity score matching to form groups within the treatment and the control group considering industry and company creation date. Using the pscore, how can I change the dummy variable for control observations to be 1 in the date their pair in the treatment group was acquired?

Thanks!