We consider the Difference in Difference method for estimating policy impacts in an observational study framework where effects are multiplicative and sample units are different in size. In this case, the natural counterpart is the Ratio of Ratios method, but there are other alternatives that we discuss to some extent.
A note on the Difference in Differences method with multiplicative effects and unequal size units / giorgio eduardo montanari; marco doretti. - ELETTRONICO. - (2019), pp. 289-292. (Intervento presentato al convegno Statistical evaluation systems at 360°: techniques, technologies and new frontiers tenutosi a Roma nel 4-5 luglio 2019).
A note on the Difference in Differences method with multiplicative effects and unequal size units
giorgio eduardo montanari;marco doretti
2019
Abstract
We consider the Difference in Difference method for estimating policy impacts in an observational study framework where effects are multiplicative and sample units are different in size. In this case, the natural counterpart is the Ratio of Ratios method, but there are other alternatives that we discuss to some extent.
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