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Economics · Oct / Nov 2018 · Paper 13 · Question 5

2281Demand

The diagram shows the demand for and the supply of air travel. What could cause a shift of the demand curve from D1 to D2?

  1. Aan increase in airline costs
  2. Ban increase in airport taxes
  3. Can increase in incomes
  4. Dan increase in worldwide terrorism

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Correct answer: C. an increase in incomes

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