"When the cost of producing a unit of a good falls because the firm uses specialized resources to produce a range of goods and services" is the definition of

In the Keynesian model, whenever planned saving exceeds planned investment

A) the interest rate will remain unchanged. B) there will be unplanned inventory depletion. C) real GDP will not be influenced. D) there will be unplanned inventory accumulation.

Tom and Billy are playing a game. They both toss a coin simultaneously. If both are heads or tails, Tom wins. If the results of the tosses are different, Billy wins. This is an example of a(n) ________

A) prisoners' dilemma B) variable-sum game C) zero-sum game D) extensive-form game