Denise is thinking about setting up a butterfly garden in her backyard. She estimates that it will cost her $2,000 to purchase and install special plants and an irrigation system to attract butterflies. The benefit she expects to receive is $1,800. In addition, neighbor Billy will receive a benefit of $150 and neighbor Sammy will receive a benefit of $100. From this, we can conclude that:
A. butterflies are a negative externality for Billy and Sammy.
B. Denise will set up the butterfly garden without any help from her free-rider neighbors.
C. if Sammy refuses to contribute to the butterfly garden, he will be unable to enjoy its benefits if it is built.
D. if Billy and Sammy contribute the amounts at which they value the butterfly garden, Denise will set it up.
Answer: D
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A profit maximizing monopoly will produce that output for which:
a. marginal revenue equals price. b. average cost is minimized. c. marginal cost is minimized. d. marginal cost equals marginal revenue.
The use of theory and observation is more difficult in economics than in sciences such as physics due to the difficulty in
a. performing an experiment in an economic system. b. applying mathematical methods to economic analysis. c. analyzing available data. d. formulating theories about economic events.