Question

Consider a model with an interaction between expenditures: voteA 5 b0 1 b1prtystrA 1 b2expendA 1 b3expendB 1 b4expendA#expendB 1 u. What is the partial effect of expendB on voteA, holding prtystrA and expendA fixed? What is the partial effect of expendA on voteA? Is the expected sign for b4 obvious?

Answer 1

Answer:

Explanation:

1. What is the partial effect of expendA on voteA?

ΔvoteAΔexpendA=β2+β4expendB→0.0382809+−6.63e−6expendB

2. Is the expected sign for b4 obvious?

Yes because the expendB alone is a negative and expendA is a positive leaving B4 to be a negative number .