If real GDP is $400 billion, full employment GDP is $500 billion, and the marginal propensity to consume is 0.5, then Congress should decrease taxes by $50 billion. increase purchases by an amount slightly more than $100 billion. decrease purchases by $100 billion. decrease taxes by $100 billion. decrease purchases by $50 billion.

Which of the following is one of the advantages primarily associated with a performance appraisal? (a) it protects employees against discrimination on the basis of race. (b) it motivates employees to work on their shortcomings. (c) it encourages employees to play the role of the whistle-blower. (d) it accurately measures the resources of the firm.