Consider a market where supply and demand are given Qx^s=-10 +Px
and Qx^d= 56-2Px. Suppose the government imposes a price floor of $25, and agrees to purchase any and all units concumers do not buy at the floor price of $235 per unit.
a. Determine the cost to the government of buying firms' unsold units.
b. Compute the lost social welfare (deadweight loss) that stems from the $25 price floor.