5. Dual entitlement implies that a firm can increase the price of a good under all of the following conditions EXCEPT

a. One of the firm's suppliers goes bankrupt and cannot sell the intermediate good to the firm.

b. The community's preference for the firm's good increases.

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6. The example of Dantes' behavior from The Count of Monte Cristo is meant to demonstrate that

a. Sometimes people act spitefully.

b. Preferences cannot simply be classified as either selfish or altruistic.

c. People have preferences for spite.

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9. Consider the trust game. How many subgames are in the trust game?

a. 1

b. 2

c. 3

d. 0

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11 Marco's preferences are complet, but not transitive. Molly's preferences are complete and transitive. Molly is also altruistic towards Marco. Which of the following are true?

a. Marco and Molly are rational.

b. Marco's preferences are not rational, but Molly's preferences are rational.

c. Neither Marco nor Molly is rational.

d. Molly's preferences are not rational, but Marco's preferences are rational.