Refer to the above table. If real GDP is $12 billion, total planned expenditures and unplanned inventory changes are respectively

Many golf courses charge members an annual membership fee as well as a fee each time they golf. One reason for this is

A) charging both fees allows the courses to transfer more producer surplus into profit than charging only an admission fee. B) golf courses do not want their members to overuse their fairways. Charging for each round of golf played reduces fairway maintenance costs. C) research has shown that charging both fees increases the likelihood that golfers will renew their memberships. D) charging both fees allows the courses to transfer more consumer surplus into profit than charging only an admission fee.

Which of the following statements concerning economic models is FALSE?

A) Economic models must provide usable predictions. B) Economic models are based on pure fact and no assumptions. C) Economic models are tested empirically. D) Economic models relate to how people behave.