An example of my data set is the following:

Code:
  

       +------------------------------------------------------------+
     | name          y          date   event   treated   intera~n |
     |------------------------------------------------------------|
  1. |  ACC   .0279861   04/sep/2018       0         0          0 |
  2. |  ACC   .0202032   04/sep/2018       0         1          0 |
  3. |  ACC   .0263037   05/sep/2018       0         0          0 |
  4. |  ACC   .0233199   05/sep/2018       0         1          0 |
  5. |  ACC   .0363558   08/nov/2018       1         0          0 |
     |------------------------------------------------------------|
  6. |  ACC   .0164535   08/nov/2018       1         1          1 |
  7. |  ACC   .0404181   09/nov/2018       1         0          0 |
  8. |  ACC   .0283537   09/nov/2018       1         1          1 |
  9. | BBBB   .0254419   04/sep/2018       0         0          0 |
 10. | BBBB   .0248689   04/sep/2018       0         1          0 |
     |------------------------------------------------------------|
 11. | BBBB   .0373516   05/sep/2018       0         0          0 |
 12. | BBBB   .0107468   05/sep/2018       0         1          0 |
 13. | BBBB   .0358811   08/nov/2018       1         0          0 |
 14. | BBBB   .0117112   08/nov/2018       1         1          1 |
 15. | BBBB   .0575707   09/nov/2018       1         0          0 |
     |------------------------------------------------------------|
 16. | BBBB   .0116921   09/nov/2018       1         1          1 |
     +------------------------------------------------------------+
People receive the treatment in the afternoon of the post-period phase

where:
- name is the name of a person
- event indicates pre-period or post period phase
- treatment indicates whether we are in the morning (=0) or in the afternoon (=1)
- interaction is the product between the two
- y is the y-variable

I want to understand if the policy has an impact or not.

I want to do a difference in difference analysis but I don't want to use xtreg because I can "follow a person" over time and I want to use a 1-to-1 matching.
In other words, I want to match observation 1 with observation 2, 3 with 4 and so on...

Is there any way I can do this? I tried with psmatch2 but without success.


Thank you!