Hello,
I hope you are well. I am trying to implement Lewbel's method but I am experiencing issues. It works when my explanatory variable ranges from 0 to 5, but when I scale it to 100, I get the error message: "Too few excluded instruments: standard IV model estimable." I have also adjusted my dependent variable to range from 0 to 100 and it still does not work. Additionally, I have tried the option where my explanatory variable ranges from 0 to 100 while keeping my dependent variable the same. I don't understand how changing the scale of my explanatory variable could cause the command to stop working. Does anyone know how can I fix this issue?
Thank you for your help.
I hope you are well. I am trying to implement Lewbel's method but I am experiencing issues. It works when my explanatory variable ranges from 0 to 5, but when I scale it to 100, I get the error message: "Too few excluded instruments: standard IV model estimable." I have also adjusted my dependent variable to range from 0 to 100 and it still does not work. Additionally, I have tried the option where my explanatory variable ranges from 0 to 100 while keeping my dependent variable the same. I don't understand how changing the scale of my explanatory variable could cause the command to stop working. Does anyone know how can I fix this issue?
Thank you for your help.
