The creation of job specializtion was an effect caused by

I think the answer is: The aggregate impacts of specialization on the economy are massive. Occasionally, people who specialize in a field develop new techniques or new technologies that lead to huge increases in productivity. Increased specialization ultimately leads to higher standards of living for all those involved in economic exchanges.

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i hope its the answer

answer: karl marx, max weber, and emile durkheim (the fourth could be considered georg simmel)

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there is no photo, therefore i can not answer your question.