Q: Are you saying, however, that feature is not
reasonable?
A: It's an interesting point, but in this case I want to go back to
thinking about what does my data set look like, and the point is
that there's going to be very high correlation between the
feature effects and the price discounts. So, for my data set, it
doesn't make a lot of sense to include this interaction term,
because essentially what these feature effects are saying is
that you know what is the incremental effect on promoting the
brand? And that's very highly correlated to saying well, what's
the price elasticity, what's the effect of the price decrease on that brand.
Back