Productivity increases make goods cheaper.
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Cheap labor makes goods slightly cheaper, the business owners mark up the price and reap in enormous profits off the backs of the slaves.
Productivity stagnates under slavery.
Productivity stagnates under slavery."
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You are perfectly entitled to be a socialist, but that's what you are. You believe the government should have a role in setting wages or determining industrial policy. That's not compatible with economic liberty. Maybe you would be more comfortable spouting class warfare bromides on DU?
Hank