Incorporated firms first began appearing in the 1850s

A marginal change is a

a. change that involves little, if anything, that is important. b. large, significant adjustment. c. change for the worse, and so it is usually a short-term change. d. small, incremental adjustment.

If adopted by a firm, a labor-augmenting piece of technology is one that would:

A. increase labor supply. B. decrease labor demand. C. decrease labor supply. D. increase labor demand.