What would not be held constant in testing a theory that if a student studies harder, he will get a better grade?
a. The course being taken
b. The ability and effort of the other students in the class.
c. The grading scale in the course.
d. The number of hours the student spends studying.
d
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Standards set to control air toxics in the United States
a. are known as the NAAQS b. are the same as those set for greenhouse gases c. are intended to attain the maximum reduction for each toxic achievable, known as MACT d. are solely benefit-based
Which of the following is an example of the recognition lag?
A. The recession began in July, but the data did not confirm that fact for seven more months. B. Fearing inflation, the Fed reduced the money supply in March, but the aggregate demand did not begin to shift to the left until November. C. The aggregate demand initially shifted to the right in January, but did not fully shift until October. D. Once the recession was recognized, it took three months to formulate a new policy to combat it.
One assumption that economists often make about people is that they are ________
A) risk-neutral B) risk-averse C) risk-seeking D) rent-seekers
Comparative advantage is determined by the relative levels of autarky prices
Indicate whether the statement is true or false