I am currently writing an empirical paper which reports on the results from estimating a number of regression models.
Question: is it standard to introduce new notation for each of these models, or should one stick to $\beta_0$, $\beta_1$, etc. every time? I am trying not to re-use notation but am running out of Greek letters... I also find introducing the new notation a little pointless since I never actually use the notation to do any symbolic manipulations.
NB I do realise that this is not a question about statistics per se and do apologise for this in advance!