Hi I need help to identify what could be the ideal model for analysis. I want to see the effect of grants on firm's productivity. It does not have a unique time series data within panel because there are different types of grants which were granted in a single year for few firms. So the time is not uniquely identified within panel. Also there is no cutoff point like a specific year when the grants were applied say 2020, so that we can look at the treatment effect using a DID method. Is there any necessity to conduct any matching techniques.
Any suggestion what could be the best way to look into this.
Any suggestion what could be the best way to look into this.
