Most of the increase in wages has gone to what group of people

20% of households

Explanation:

Plato, was a Greek Philosopher. One of the information which can be found in his book titled Republic, was that the richest person in a particular society shouldn't earn above 5 times that of the poorest person.

According to him, he stated that 20% of households, are known to be the upper class and these people earn more wages. On the other hand, the remaining 80% are earned by the middle and lower class.

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