Suppose when Nablom's Bakery raised the price of its breads by 10 percent, the quantity demanded fell by 15 percent. What was the effect on sales revenue?
A) Sales revenue increased.
B) Sales revenue decreased.
C) Sales revenue remained unchanged.
D) It cannot be determined without information on prices.
B
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The confidence interval for a single coefficient in a multiple regression
A) makes little sense because the population parameter is unknown. B) should not be computed because there are other coefficients present in the model. C) contains information from a large number of hypothesis tests. D) should only be calculated if the regression R2 is identical to the adjusted R2.
Black Market
What will be an ideal response?
If two duopolists can stick to a cartel agreement to boost their prices, then both
A) earn greater profits than if they did not collude. B) price at marginal cost. C) price below average total cost. D) decrease their economic profits. E) increase their production so that each produces more than if they did not collude.
For an inferior good, if the income effect more than offsets the substitution effect, we call that good
A) a Giffen good. B) a normal good. C) an inferior good. D) a neutral good.