If an increase in consumer incomes causes the demand curve for product Z to shift to the left, then it can be said that product Z is a(n):

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Quizplus · Accepted Answer

If an increase in consumer income causes the demand curve for product Z to shift to the left, then it means that product Z is an inferior good. This is because as consumers have more income, they will choose to buy more expensive or better-quality products, causing a decrease in demand for inferior goods.

If an Increase in Consumer Incomes Causes the Demand Curve