yes,
you should use the option basecategory(#) after the command
mlogit depvar [indepvars] [weight] [if exp] [in range] ,  basecategory(#)
anna
I've always found mlogit's practice of using the most frequent category as 
the base category a little annoying.  It is easy enough to override, but it 
would be nice to be able to say something like basecategory(last) for when 
you want to use the last category as the base but don't happen to remember 
what its value is.  It would also be nice if you could permanently set it 
to go with the first or the last value, as I'm always forgetting to 
override the default behavior.