The plm tag has no tag wiki, no explanation. What is it for? I would like to add an tag wiki, but need first to know why it is there.
It's used in only 25 questions at the time of writing; the few I looked at all make reference to R's
plm Linear models for panel data package.
Recall that anyone with over a certain reputation can create new tags—we can write tag wikis without worrying about their original motivation.