If Q represents a firm's level of output, W represents the wage paid to labor (L) and R is the cost of capital (K), then which of the following represents the firm's isocost line?

If prejudice originates with employers, market forces work to reduce discrimination and lower wage differences between the favored and unfavored groups

a. True b. False

Suppose a banking system has a required reserve ratio of 0.10. How much can the money supply increase in response to a $500 increase in excess reserves for the whole banking system?

A. $4,500. B. $5,000. C. $50. D. $500.