If your income elasticity of demand for hot dogs is negative, then:

A) your demand curve for hot dogs is not downward sloping.
B) hot dogs are an inferior good for you.
C) hot dogs have no close substitutes for you.
D) you must not enjoy eating hot dogs.

Robert black, regional manager for ford in texas and oklahoma, faced a dilemma. the ford f-150 pickup truck was the best-selling pickup ever, yet ford's headquarters in detroit had decided to introduce a completely redesigned f-150. how could mr. black sell both trucks at the same time? he still had "old" f-150s in stock. in his advertising, mr. black referred to the new f-150s as follows: "not a better f-150. just the only truck good enough to be the next f-150." this statement represents ford's of the new f-150.