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Difference in differences statistics economics

Hello!

Is the pre and post treatment timings correct for this? I am estimating a difference in differences equation to look at the impact on labour supply from a cash subsidy that was implemented December 2010 for 70% population and March 2011 for 30% of a population.

- Control group: Early participants, who received the subsidy in both periods. They started receiving cash transfers in winter 2011 and continued to receive them in 2012.
- Treatment group: Late participants, who received the subsidy in the second period only. They registered after March 2011 and received cash transfers in winter 2012 but not in the same quarter in 2011.

- Pre-treatment period: January December 2010
- Post-treatment period: January March 2011

Many thanks! :smile:

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