It's already given that slavery was an economic success for the "New World". Its also a given that the Slaves were also not considered "human", but property, so its not surprising to see how slavery and capitalism are comparable items. In the article, Getz argument was that capitalism and slavery existed WITH the other acting as sibling systems. The growth of textiles and goods relied on human labor, that's it. It would've took massive amounts of human labor to reach the successful return of investments and profits. Economic success whether it was forced labor or "negotiable" employee/employer relationship, they both worked hand in hand to propel the New World innovations and businesses for generational wealth