After analyzing his opponent a tennis player decides to serve 10% of his serves to the left, 50% of his serves to the right, and 40% of his serves at the body of his opponent. This illustrates a

Suppose Country X is relatively labor-abundant and relatively land-scarce. Country Y is relatively labor-scarce and relatively land-abundant. The production of corn is relatively land-intensive while the production of shoes is relatively labor-intensive. Explain the short- and long-run effects of opening to free trade between these countries on the incomes of: workers employed in the production of corn in each country; workers employed in the production of shoes in each country; land used in the production of corn in each country; and land used in the production of shoes in each country.

What will be an ideal response?

A game in which any gains by the group are exactly offset by equal losses by the end of the game is called the

A. positive-sum game. B. cooperative game. C. negative-sum game. D. zero-sum game.