6) Suppose a tax of $3 per unit is imposed on a good. The supply curve is a typical
upward-sloping straight line, and the demand curve is a typical downward-sloping
straight line. The tax decreases consumer surplus by $3,900 and decreases producer
surplus by $3,000. The tax generates tax revenue of $6,000. The tax decreased the
equilibrium quantity of the good from
a. 2,000 to 1,500.
b. 2,400 to 2,000.
c. 2,600 to 2,000.
d. 3,000 to 2,400.
7) Suppose that workers immigrate to Minnesota from Canada. Which of the following
correctly describes what would happen in the market for labor in Minnesota?
a.The equilibrium wage would increase, and the quantity of labor would increase. With
more workers, the added output from an extra worker is larger.
b.The equilibrium wage would decrease, and the quantity of labor would decrease. With
fewer workers, the added output from an extra worker is smaller.
c.The equilibrium wage would decrease, and the quantity of labor would increase. With
more workers, the added output from an extra worker is smaller.
d.The equilibrium wage would decrease, and the quantity of labor would increase. With
more workers, the added output from an extra worker is larger.
8) The second number in any ordered pair is
a.the x-coordinate.
b.the y-coordinate.
c.the horizontal location of the point.
d.the slope.
9) Which of the following is not correct about most economic models?
a.They are composed of equations and diagrams.
b.They contribute very little to economists’ understanding of the real world.
c.They omit many features of the real-world economy.
d.In constructing models, economists make assumptions.