Slaves have value

Here is an excerpt from an 1850 ante bellum news article on the value of slaves:

The potential deportation of about 800,000 so-called “Negro Slaves” could have significant negative consequences for the US economy.Lincoln’s decision to repeal the Deferred Action for Negro Arrivals (DANA), signed by President Buchanan in 18549, will reduce the labor force by 0.5% in the five years following implementation, according to Moody’s Chief Economist Mark Zandi.