WW2 I believe/think. That would be my answer.
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Bartering, which has taken place since the early history of man, implies a process of exchanging of goods. Bartering may present some difficulties during the process of exchanging. One problem that may occur when one is bartering, appears as the result of two people having different ideas about the value of the item (Option "B"). Since bartering lacks a standard unit of account, the prices on goods could not be measures or quoted. Due to the absence of a common unit of account, disagreements between exchangers may difficult the bartering process.
<span>The term chunking describes organizing items into familiar, manageable units. this often occurs automatically.
</span><span>When people develop expertise in an area, they process information using chunking and hierarchies composed of a few broad concepts divided and subdivided into narrower concepts and facts.
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