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fixed effect counterfactual estimators
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Question about relative time periods #10

Closed QLgogo closed 1 year ago

QLgogo commented 3 years ago

Hi, I just encountered an issue when using "fect" package in R and cannot find the answer from the instruction. The relative time periods in my data is from "-8" to "+2", but the coefficients returned by "out.fect$est.att" is for the relative from "-7" to "+3". I cannot understand why there is a shift here? (The year when the policy was released is denoted as relative period "0")

xuyiqing commented 3 years ago

In "fect", the year when the policy was released is always denoted as relative period "1".

On Wed, Dec 23, 2020 at 7:05 AM QLgogo notifications@github.com wrote:

Hi, I just encountered an issue when using "fect" package in R and cannot find the answer from the instruction. The relative time periods in my data is from "-8" to "+2", but the coefficients returned by "out.fect$est.att" is for the relative from "-7" to "+3". I cannot understand why there is a shift here? (The year when the policy was released is denoted as relative period "0")

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-- Yiqing Xu

Assistant Professor Department of Political Science Stanford University http://yiqingxu.org/

QLgogo commented 3 years ago

Got you. Thanks!