Usage History of 'oligopsony'

The following chart shows how frequently 'oligopsony' appeared in printed materials over time. For example, the word 'oligopsony' occurred 2 times in books in 1926 and 268 times in 2008. From 1926 to 2008, the word 'oligopsony' was used a total of 21,531 times in books scanned by Google. See Reference: Google Ngram project.

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