Why “supply and demand” doesn’t work for oil
A gradual switch in consumer preferences from beef to chicken is also fairly easy to accommodate within the system, as more chicken producers are added and the number of beef producers is reduced. The transition is generally helped by the fact that it takes fewer resources to produce a pound of chicken meat than a pound of beef, so that the spendable income of consumers tends to go farther. Thus, while supply and demand are not independent in this example, a rising percentage of chicken consumption tends to be helpful in increasing the “quantity demanded,” because chicken is more affordable than beef. The lack of independence between supply and demand is in the “helpful” direction. It would be different if chicken were a lot more expensive to produce than beef. Then the quantity demanded would tend to decrease as the shift was increasingly made, putting a fairly quick end to the transition to the higher-priced substitute.
A gradual switch to higher-cost energy products, in a sense, works in the opposite direction to a switch from beef to chicken. Instead of taking fewer resources, it takes more resources, because we extracted the cheapest-to-extract energy products first.
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