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It is possible to represent three dimensions on a two-dimensional graph by using


A) a contour map.
B) a razor blade.
C) curved lines.
D) all of the above.

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"The hotter it gets, the more water people drink." This statement implies that the relationship between temperature and water consumption must have a


A) negative slope.
B) positive slope.
C) slope always equal to one.
D) slope always equal to 45 degrees.

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During a war, a government will often draft people, most of whom are presently employed, into the army.An economist, computing the real cost of the war, would be sure to include which of the following items?


A) the value of the civilian goods no longer produced by the new soldiers
B) the cost of feeding and clothing the new soldiers
C) the dollar cost of the payroll
D) the higher prices of civilian goods due to wartime shortages
E) the cost of transporting the soldiers to combat

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The government uses fiscal and monetary policy to mitigate the effects of economic fluctuations.

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The slope of a curved line at a particular point is


A) always greater than the slope of a straight line at the same point.
B) always smaller than the slope of a straight line at the same point.
C) defined as the slope of the straight line representing the average values for the entire curve.
D) defined as the slope of the straight line that is tangent to the curve at that point.

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An economic model can be defined as


A) a testable claim which can be evaluated with proper data.
B) a representation of a theory or a part of a theory.
C) another word for theory.
D) a method to distinguish correlation from causation.
E) All of the above are correct.

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The 1981 tax reform act reduced taxes on high-income individuals.Many economists believed that high tax rates would deter high-income individuals from working and investing, thus slowing the growth of income.This illustrates the issue of


A) the equality-efficiency trade-off.
B) usury.
C) the effects of budget deficits on future generations.
D) the cost disease of the public sector.
E) the importance of externalities.

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Is it possible to express an economic model in words without diagrams?


A) No, models can only be stated in diagrams.
B) No, the very definition of model requires mathematical form.
C) Yes, some of the simplest models are verbal statements.
D) Yes, although the best models always use diagrams.
E) Uncertain, economic theory has not answered this question yet.

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Economists disagree on most economic issues facing an economy.

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Economic theory is necessary and extremely important because of its relationship to economic policy.

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A graph's origin is the point of intersection of all lines or curves in the graph.

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Which of the following is an example of an externality?


A) Drug abuse affecting David's health.
B) Sara taking a break from work.
C) A transaction between two parties, affecting them alone.
D) Tom's smoking affecting his roommate's health.

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If a government enacts a rent control to protect apartment tenants, the result is likely going to be


A) an increase in rents with a surplus of apartments.
B) an increase in rents with a shortage of apartments.
C) a decrease in rents with a surplus of apartments.
D) a decrease in rents with a shortage of apartments.

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Lower inflation rates are usually correlated with lower unemployment rates.

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The slope of a downward-sloping straight line can be calculated as the distance from the


A) horizontal intercept of the line to the origin divided by the distance from the origin to the vertical intercept of the line.
B) origin to the horizontal intercept of the line minus the distance from the origin to the vertical intercept of the line.
C) vertical intercept of the line to the origin divided by the distance from the origin to the horizontal intercept of the line.
D) vertical intercept of the line to the origin minus the distance from the origin to the horizontal intercept of the line.

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Why do economists abstract, and is it appropriate?

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Economists (and other scientists) abstra...

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The steepness of a curve is partially determined by the units of measurement.

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Harry Truman is credited with the statement, "Give me a one-armed economist," because economists are likely to say, "On the one hand, ...on the other hand." Why do economists "waffle" more than physicists or chemists?

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Economists describe human behavior, whic...

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Slope will vary along a curve (as opposed to a straight line).

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Economic models


A) are always based on realistic assumptions.
B) usually predict perfectly.
C) can never be tested with real world data.
D) are used to describe cause-and-effect relationships.
E) are too simple to be of much use.

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