if a housewife has meat and tomatoes, she must find someone who wants meat and has tomatoes to give. this concept is described as?
- opportunity cost
- scale of preference
- complementary demand
-
double of coincidence of wants
The correct answer is: D
Explanation
This occurs when two people have goods they are both happy to swap in exchange. i.e. a perfect barter exchange. a requirement that must be met before a trade can be made. It specifies that a trader must find another trader who is willing to trade what the first trader wants and at the same time wants what the first trader has.