In the event that your treatment variable suffers from perfect multicollinearity with one of your controls, a viable remedy is:
A) drop the control variable.
B) drop the treatment variable of interest.
C) change the population to one, where the treatment and control are not exactly linearly related.
D) use the within estimator.

Question

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The Answer of In the event that your treatment variable suffers from perfect multicollinearity with one of your controls, a viable remedy is:
A) drop the control variable.
B) drop the treatment variable of interest.
C) change the population to one, where the treatment and control are not exactly linearly related.
D) use the within estimator.

In the Event That Your Treatment Variable Suffers from Perfect