Figure 6-4
Which of the following statements is true about the price elasticity of demand?
A) The elasticity coefficient is constant along the demand curve.
B) The elastic portion of a straight-line downward-sloping demand curve corresponds
to the segment above the midpoint.
C) The inelastic portion of the demand curve corresponds to the segment above the
midpoint.
D) At the midpoint of the demand curve, the elasticity coefficient is zero.
Why do some economists point to a decline in the quality of labor as an explanation for
the productivity slowdown in the mid-1970s?
A) The average level of education of citizens of the United States rose dramatically
during this period of time.
B) The skill level required to perform many jobs increased during this period of time,
although the skills of the labor force did not increase as quickly.
C) Scores on standardized tests during that period of time began to rise.
D) Increases in the amount of capital available reduced labor quality.