Suppose the income-consumption curve for goods X and Y is upward sloping. If the price of good Y increases and the income-consumption curve rotates in clockwise fashion, then we know that:
A) X and Y are complements.
B) X and Y are both inferior goods.
C) X and Y are substitutes .
D) Y is an inferior good.
C
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Which of the following statements is NOT true?
A. Economic theory often makes unrealistic assumptions. B. Economists ignore details to focus on complex problems. C. Abstraction is not an important part of economic analysis. D. The word theory means different things to economists and to ordinary people.
Based on the figure below. Starting from long-run equilibrium at point C, a tax cut that increases aggregate demand from AD to AD1 will lead to a short-run equilibrium at point ________ and eventually to a long-run equilibrium at point ________, if left to self-correcting tendencies. 
A. D; C B. B; C C. B; A D. D; B
Natural unemployment equals the sum of
A) cyclical and frictional unemployment. B) cyclical, business, and structural unemployment. C) frictional and structural unemployment. D) business and cyclical unemployment. E) cyclical and structural unemployment.
When firms price their products by adding a percentage markup to their average costs of production, this is called
A) cost-plus pricing. B) rounding up. C) break-even pricing. D) average cost pricing.