________ behavioral assumption about humans was that people usually act in a rational, self-interested way

The end of slavery in the United States represented

A) a large wealth transfer from the South to the North. B) a large wealth transfer from the future to the present. C) a large wealth transfer from Southern slave-holders to newly freed slaves. D) a nominal wealth transfer from Southern slave-holders to newly freed slaves.

For a resource to be able to generate sustained competitive advantage over rivals, it must be

a. Valuable b. Rare c. Difficult to imitate or substitute away from d. All of the above