Ethics is the branch of philosophy that deals with issues of right and wrong in human affairs. 

A city wants to evaluate the impact of a new job training program. They compare the employment rates of participants in the program to those that did not apply.  Which of the following best explains why this study may suffer from selection bias? 

A study recruits participants from low-income neighborhoods for a health intervention. The researchers ensure that both the burdens and benefits of the study are fairly shared among participants. This illustrates which Belmont principle?

Which of the following best describes the difference between a population and a sample in research?

A city is studying whether adding more streetlights reduces crime in certain neighborhoods. Preliminary results show that neighborhoods with more streetlights have lower crime rates. What is one possible lurking variable that might explain this relationship, and why? 

Thomas’s Dirty Pig Pit BBQ is a monopoly firm that currently sells 40 BBQ’ed dirty pigs a week. Thomas’s marginal cost is $16 per pound, his price is $17 per pound, and his average total cost is $16 per pound. Thomas 

For a perfectly competitive firm, the marginal revenue of the last taco produced is greater than the marginal cost. In order to produce the profit-maximizing quantity of tacos,

An import quota and a tariff are different because

A barrier to entry 

When firms in a monopolistically competitive market are incurring an economic loss, some will exit the market so that each of the surviving firm’s demand curve shifts ____, the price each of these firms can charge ____, and their economic loss ____.