Dear all,

I have a question about integrating moderators into a panel regression in Stata 14.2. Is there a difference in the two following notations of the xtlogit regression?

1) xtlogit depvar c.indepvar c.indepvar#c.moderator
2) xtlogit depvar c.indepvar##c.moderator

From my logic, both should be the same. However, I get different results when testing. What am I missing?

Many thanks in advance for your help.