Is the use of Slave Labour effective? Because isn't a (well) paid worker more efficient than a Slave because the worker is less likely to be weak from undernourishment , more motivated than a slave and more capable of doing more than basic tasks. And a Worker give back to the economy by buying goods and paying taxes while the Slave can't. If so, then throughout human history why did people use slave labour over paid workers?
Did the amount of cheap slaves make it worth it? Was the benifits of paid workers not as obvious? Was the paid worker not as efficient until recently?
Thanks in Advance
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