The quantity demanded in a market depends on many things, but the concept of elasticity focuses on the effect of changes in the price of the good

The "no shirking constraint" (NSC) curve is

A) downward-sloping to reflect the fact that at higher wages, firms will monitor workers more to see whether they are shirking. B) downward-sloping to reflect the fact that shirking tends to be higher in lower-paying industries. C) upward-sloping because at high levels of unemployment, workers will refrain from slacking without much other incentive. D) upward-sloping because at high levels of employment, many "slacking" individuals have been hired. E) vertical because the constraint represents the absolute amount of time a firm will tolerate workers' slacking without laying them off.

Table 31.1Wage rate (dollars per hour)Labor demanded (workers)Total labor cost(dollars per hour)Marginal Wage  (dollars per worker)$260________---222________________184________________146________________108________________Table 31.1 shows the number of workers a firm is willing to hire per hour at different wage rates. Complete the table by computing the total wage bill (total labor cost) and the marginal wage. Assume the union collects dues of 1 percent of the total wage bill. How many workers would the union want hired in Table 31.1 if its goal was to maximize the amount of dues collected?

A. 8. B. 2. C. 4. D. 6.