why did the government made monopoly illegal in the u.s?

Answer 1

A few monopolists were starting to hurt businesses by charging too much money for things, thus driving down their competition and - as a side effect - reducing the tax and tariff revenue paid to Uncle Sam. Well, you just don't do that. If Uncle Sam can't have HIS cut, nobody can. So instead, the US Commerce department promotes competition so nobody can "corner" the market on something and cause artifical prices to prevail.

Answer 2

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