Draw a graph to explain the following situation:
A pest attack on the tomato crop increases the cost of producing ketchup. At the same time, a mild winter causes cattle herds to be unusually large, causing the price of hamburger to fall. The equilibrium quantity of ketchup is unchanged. Assume hamburger and ketchup are complements. Draw the market for ketchup. Be sure to label any new curves and specify any new equilibrium price and quantity.