In the real world, the K/Y ratio
A) is much higher in rich countries than in poor countries.
B) is much lower in rich countries than in poor countries.
C) is roughly equal across rich and poor countries.
D) cannot be properly compared except between countries of similar income levels.
C
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The price of coffee rose 40 percent and the quantity of coffee demanded fell by 20 percent. The quantity of doughnuts demanded also fell by 20 percent. From this information, we can conclude that
A) the demand for coffee is elastic. B) the demand for coffee is unit elastic. C) coffee is an inferior good. D) the cross elasticity demand between coffee and doughnuts is -0.5. E) the income elasticity of demand for coffee is 2.
Suppose a smoker wants to quit smoking. The utility that he gets from smoking a cigarette now is 6 utils but, in the long run, that cigarette will generate undiscounted health problems of 10 utils (e.g., an elevated risk of lung cancer)
Use the concept of discounting to explain why impatient smokers may not quit smoking even though the undiscounted net utility of smoking is negative.