Hi,

I'm working with a survey data which covers 5 rounds (1995, 2000, 2005 , 2010 and 2015). However, the data is not a panel but cross-section. My pre-treatment period is 1995, 2000 and 2005 and post treatment is 2010 and 2015. I'd like to apply DID and matching techniques. Is it plausible to match the sample at the first place and then apply standard DID? If so, how can I match the observations in a cross section data. As far as I know, matching is performed using the pre-treatment characteristics of the treatment and control groups. But my data structure does not allow to track the same observations in the pre and post period? One option might be to match the observations in the pre-treatment and post-treatment period, separately? Or is it completely not accurate? Any help will be appreciated.