Slavery Helped Build a World Economy

Read the following article and summarize what the author is trying to tell the reader about slavery's impact on the economy: Plus add your analysis of the article..did you agree with the author's theory or view? Please only summarize ONE article
How Slavery Helped Build a World Economy by Howard Dodson https://www.nationalgeographic.com/news/2003/1/how-slavery-helped-build-a-world-economy/