The reliability of a study using multiple regression analysis depends on all of the following with the exception of
A) omitted variable bias.
B) errors-in-variables.
C) presence of homoskedasticity in the error term.
D) external validity.
Ans: C) presence of homoskedasticity in the error term.
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An increase in the price of oil ________ aggregate supply, shifting the aggregate supply curve ________ and potentially bringing the ________ phase of the business cycle
A) decreases; rightward; expansion B) increases; rightward; recession C) increases; rightward; expansion D) decreases; leftward; recession E) decreases; rightward; recession
Daniel Hammermesh and Stephen Donald studied the determinants of the earnings of college graduates years after they graduated. Which of the following is one result of their study?
A) Students who took more Advanced Placement (AP) courses while still in high school earned significantly more income for each AP course they passed with a grade of 4 or 5. B) Students who took at least three economics courses earned about 9 percent more income than students who took no college economics courses. C) Students who had taken 15 credits of upper-division science and mathematics courses and earned high grades in these courses earned about 10 percent more than students who took no upper-division classes in these subjects. D) The earnings of identical twins were about 9 percent higher than the earnings of all other students.
To maintain an interest rate target the Fed must make adjustments to the money supply
a. True b. False
In a loan, the lender lends the borrower ________, for which the borrower pays the lender ________.
A. the default; the principal B. interest; the term C. the term; the default D. the principal; interest