A price ceiling set above the equilibrium price causes a surplus in the market.

A binding price ceiling (i) causes a surplus. (ii) causes a shortage.

A、

(ii) only

(iv) only

(i) and (iii) only

(ii) and (iv) only

If a price ceiling is set above the equilibrium price, then

A price floor set above the equilibrium price causes quantity supplied to exceed quantity demanded.

A shortage will occur at any price below equilibrium price and a surplus will occur at any price above