Refer to Table 20-5. Approximately what percentage of families in Umakastan have
income levels below $74,000?
a.27%
b.28%
c.52%
d.79%
9) An economics professor, upset about the rising cost of textbooks, proposed that his
department purchase 50 copies of a statistics book so the students in the statistics class
would not have to purchase their own books but rather could borrow a book for the
semester and then return it for the next class to use. Which of the following strategies
would not prevent a common resource problem with the textbooks?
a.Students will be required to pay a deposit for the textbook, which is refundable at the
end of the semester when the book is returned in good condition.
b.The textbooks are placed in a common area of the department so students can borrow
and return them as needed.
c.Students must sign a form agreeing to return the book or pay a fine equal to the
replacement cost of the book.
d.The textbooks are placed in the professor’s office and will only be given to students
who are registered members of the class. These students will not receive their final
course grades until the books are returned.
10) A firm’s demand for labor is derived from its decision to supply a good in another
market.
a.True
b.False
11) Which of the following is an advantage of tradable pollution permits?