Auschwitz/ Birkenau and belzec were two that was used during that time.
They drove down prices of crop and food because they had free labor so they could charge less then other people.
Answer:
They are run by boards of directors.
It was the economic idea of "laissez-faire" that the United States adopted from Adam Smith, since Smith was an advocate for the free market system to be uninhibited by government intervention.