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Results tagged with panel-data
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user 336510
Panel data refers to multi-dimensional data frequently involving measurements over time in econometrics. It is also called longitudinal data in biostatistics.
-1
votes
Random effects model with PLM: "System is computationally singular"-Error?
I tried all the possible options in random.method, but I still got the same message -
Error in solve.default(vcov(x)[names.coefs_wo_int, names.coefs_wo_int], :
system is computationally singular: re …
- 31
2
votes
0
answers
80
views
Instruments for Control Function Approach involving quadratic and interaction terms
My panel model is of the following form where x1 is the endogenous regressor and z is the moderator.
y = f(x1, x1^2, x1z)
The instrument for x1 is M (based on averages of similar observations except …
- 31