In 1973 and again in 1979, the Organisation of Petroleum Exporting Countries (OPEC) raised the world price of crude oil and increased their revenue as well. Which of the following is a true statement regarding these OPEC price hikes?
Select ONE answer:
- Their revenue would have increased regardless of income elasticity or price elasticity because oil is an imported product for most nations.
- Their revenue only increased because oil was already very expensive.
- Their revenue increased because the demand for oil was income inelastic.
- Their revenue increased because the demand for oil was price inelastic.
Explain what is the equilibrium price and quantity and how they are determined:
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This is a multiple choice question is suitable for Economics KS5 classes.
The answer is 4

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