Barter exchange presumes the rather improbable:
APerfectly fixed price level
BDouble coincidence of wants
CSingle common unit of account
DPermanent store of all value
Answer & Solution
Correct answer: B. Double coincidence of wants
1. Each party must want exactly what the other offers.
2. This is the double coincidence of wants.
3. Search costs rise with more people.
_Source: NCERT Class 12 Introductory Macroeconomics, Chapter 3, Money and Banking._
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