You are a consultant and have been employed by Urban General, a large inner$-$city hospital, to estimate the demand for its services. Your research indicates that the income elasticity of demand for the target market is $+0\mathrm{.}50$; the price elasticity of demand is $-0\mathrm{.}15$; and the cross$-$price elasticity of demand with respect to the price of services at St$.$ Elsewhere, a near$-$by hospital, is $+0\mathrm{.}35.$Area income increases by $20$ percent.

Quantity demanded at Urban General does not change.

Quantity demanded at Urban General falls by $10\mathrm{.}0$ percent.

Quantity demanded at Urban General rises by $10\mathrm{.}0$ percent.

Quantity demanded at St$.$ Elsewhere rises by $7\mathrm{.}0$ percent.

There is not enough information to tell what happens to quantity demanded at either hospital.