The kind of slavery generally practiced in the new world was .indenture2.free3chattel

Indenture because they kept them captive instead of letting them roam free or free period

Slavery, though still existing in a variety of ways, was a common, global practice when the colonists arrived. Economics is one reason: the colonists actually DID believe …that African Blacks are the best workforce for picking cotton, tobacco and sugar cane. And the African tribal leaders were offering this free workforce at an insanely cheap price.