The study of aggregate economic activity for the economy as a whole is

In the above table, what is the marginal factor cost of the 5th worker?

A) $22 B) $18 C) $90 D) $26

Consider an investment with the following payoffs and probabilities: State of the Economy Probability Return Stability .50 1,000 Good Growth .50 2,000 Determine the expected return for this investment

a. 1,300 b. 1,500 c. 1,700 d. 2,000 e. 3,000