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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? 

In a study examining the effect of class size on student test scores, which of the following is the dependent variable? 

Which of the following is not one of the main criteria for establishing causation in social science research? 

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 ____.

The price of lithium used to manufacture batteries rises. In the short run, the price of a battery ____ and the quantity ____.

Which of the following is a variable cost for a gasoline station?

When the government imposes a tariff on an imported good, the price of the good in the domestic nation ____ and a deadweight loss is ____.

This cranial nerve helps control eye movement:

Compared to a perfectly competitive market with the same cost and demand, a single-price monopolist produces

Inter-city bus travel is an inferior good and people’s incomes increase. In the short run, the price of an inter-city bus ride ____ and the quantity ____.