The Pennsylvania Turnpike is a tolled freeway running through the state of Pennsylvania. Motorists must pay tolls at various points along the Turnpike based on the distance they traveled on the freeway. Suppose that despite the tolls, many motorists in the urban areas use the Turnpike causing traffic to slow during peak times. What type of good would the Turnpike be classified as in this case?

A game in which all the players are better off at the end of the game is a

A) tit-for-tat game. B) dominant strategy game. C) positive-sum game. D) noncooperative game.

Which of the following observations is true?

A. In the long run, more costs become variable. B. Fixed costs cannot be completely varied if the time period is sufficiently long. C. Fixed costs arise when some types of inputs can be bought only in big batches. D. Variable costs arise when inputs have a large productive capacity.