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If a housewife has meat and wants tomatoes, she must find someone who has tomatoes to ...

If a housewife has meat and wants tomatoes, she must find someone who has tomatoes to give and wants meat. This concept is described as
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  • A Scale of preference
  • B Opportunity cost
  • C Complementary demand
  • D Double coincidence of wants
Correct Answer: Option D
Explanation:
Double coincidence of wants simply mean searching for those who need what you have and at the same time has what you need. It is a major barrier to barter trade.

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