The Text Shows That Income Elasticity for Books Is 1

Multiple Choice

The text shows that income elasticity for books is 1.44. This means that

A) books are income inelastic
B) books are price inelastic
C) there's a 144 percent increase in book sales when income rises 10 percent
D) there's a 44 percent increase in book sales when income rises 10 percent
E) there's a 1.44 percent increase in book sales when income rises 1 percent