The true causal effect might not be the same in the population studied and the population of interest because
A) of differences in characteristics of the population
B) of geographical differences
C) the study is out of date
D) all of the above
Answer: D) all of the above
Economics
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In the model of perfect competition,
A) all firms earn zero economic profit in the long run. B) all firms use the lowest-cost technologies. C) all firms take the prevailing market price as given. D) all participants fully exhaust any potential gains from trade. E) all of the above occur.
Economics
The above table shows the short-run total product schedule for the campus book store. What is the average product (AP) of the 4th employee?
A) 58 books sold B) 14.5 books sold C) 18 books sold D) 13.3 books sold
Economics