Economists compute the price elasticity of demand as the
a. percentage change in price divided by the percentage change in quantity demanded.
b. change in quantity demanded divided by the change in the price.
c. percentage change in quantity demanded divided by the percentage change in price.
d. percentage change in quantity demanded divided by the percentage change in income.
c
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The market demand curve for mousetraps is
A) found by summing the quantities of mousetraps demanded at each income level by each buyer. B) found by summing the prices of mousetraps at each quantity of mousetraps demanded by each buyer. C) the horizontal sum of the individual demand curves for mousetraps of all the buyers. D) Both answers B and C are correct. E) Both answers A and C are correct.
If it is assumed that capital is alike and freely mobile between economies, the Solow growth model
A) has no need of the recent attempts at improving it. B) suffers from the "exogeneity" problem. C) suffers from the "non-convergence" problem. D) suffers from the "incentives" problem.