Jacob is holding an investment he bought for $1,000 that has a 60 percent chance of gaining $200 in value and a 40 percent chance of losing $40. Jacob's average expected rate of return on this investment is:

The Treasury bill auction is over when the market reaches the

A) highest bid. B) stop-out price. C) discount price. D) optimal price.

When diminishing marginal returns set in,

A) average product is increasing. B) average variable cost is decreasing. C) average cost is decreasing. D) None of above.