Which of the following is a step that can remedy an interpolation/extrapolation identification problem?
A. Use a probit/logit model to alleviate the data gaps.
B. Use a fixed effects model.
C. Collect more/alternative data to close the data gap, extent of the data.
D. Use two-stage least squares to interpolate/extrapolate.
Answer: C
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Answer the following statement true (T) or false (F)