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Discussion

The standards and labelling programme influences consumption by

  • A.subsidising the purchase of efficient appliances
  • B.taxing the electricity such appliances consume
  • C.informing purchasers of an appliance's efficiency at the point of sale
  • D.prohibiting outright the sale of any inefficient appliance

Answer: C

A star rating on a refrigerator or an air conditioner lets a buyer weigh purchase price against running cost, and raising the thresholds over time withdraws the worst models. It works through information and minimum standards rather than through price.

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