Hi Clyde need some help on DDD

My research question lies in seeing - does bargaining power influences households purchases.. trying to address this with the help of migrant and non-migrant households using survey data in 2011 and 2016. I did use DID now to check the robustness of the model i explore to use DDD
the regression equation is as follows
regress `x' year1 mig_stats_16 mig_stats_yr, robust
i do run the above equation also with controls later.
year 1- 2016 year
mig_stats_16
mig_stats_yr- is the interaction term between treatment and year (1)
how could i run DDD with this data.. please advice Clyde