I have been trying to use the command didregress to calculate my dif-in-dif estimates but i cant seem to specify my groups such that i dont get an error prompt.
In my eyes it doesn't seem like i have any groups in my data that would fulfill the requirements of the group option.
Im using population cross-sectional data in which some are submitted to treatment and others are not. Im using the group that is not submitted to treatment as the control group and thus i have no "groups" that wouldn't produce collinearity problems or not be a control group - both of which are requirements of didregress.
Any help is appreciated :-)
Regards Esben
In my eyes it doesn't seem like i have any groups in my data that would fulfill the requirements of the group option.
Im using population cross-sectional data in which some are submitted to treatment and others are not. Im using the group that is not submitted to treatment as the control group and thus i have no "groups" that wouldn't produce collinearity problems or not be a control group - both of which are requirements of didregress.
Any help is appreciated :-)
Regards Esben