What economic strategy did labor unions steal from big business owners?

Stop working till their demands were accepted.

Explanation:

The economic strategy labor unions steal from big business owners is to put pressure by stop production. The big business owners put pressures on the government to accept their demands by stopping production, this strategy also used by the labor unions in order to fulfill their demands, they also stop working till their demands were fulfilled. This strategy applied to put pressure on the big business owners as they put on the government.

the answers are excess supply, and fall

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