Answer:
D. all of the above
Explanation:
Choosing an appropriate sample size depends on all of the above factors.
For example, if we want a sample with a high level of confidence, for a population that is very diverse (high variability), and we want the sample to have a very low margin of error, we would need a large sample, in order to make the sample as close as possible to the population as a whole.
Answer:
b. the marginal social benefit to exceed the marginal private cost of the last unit produced.
Explanation:
<u>Positive Externality-</u>
Positive Externality occurs when production or the consumption or of the good causes benefit to the third party.
For example, when the individual consume education in order to be uplifted and get a benefit but this education also benefits the society by uplifting the whole society.
<u>Positive externality causes the marginal social benefit to be greater than the marginal private benefit.</u>
The transition economy might have problems with rising unemployment, inflation, lack of entrepreneurship and skills, corruption, lack of legal system, moral hazard and inequality. With these problems that the transition economy will have, it might turn foreign investors and will not invest.
