Detailed text transcripts for TV channel - MSNBC - 20151011:14:54:00
They were credit. they were money. >> that idea of human beings being money, being actual currency, talk about what that looks like. you talk about it indepth in the tempt. >> well, you know, an economist tells through are three categories of -- three things that something has to -- three classes you have to satisfy to be money. means of exchange, retains the value over time. unit of account. slaves were often used to settle a debt when there was no gold or silver around. so they were a means of exchange. they weren't the most common money. you could always sell a slave if you have to. retains...