What the text calls "the economic way of thinking" is primarily

The Ford Taurus and Ford Escort product lines (both produced by Ford) use many of the same parts in their cars, and the cars are, apart from design, virtually identical to one another, except for price. This suggests

a. a balanced oligopoly b. cartel pricing c. Ford's production inefficiency d. game theory pricing e. price discrimination

Given that the median male is better paid than the median female, which of the following is a valid explanation for wage differences?

a. compensating differentials b. differences in human capital c. discrimination d. All of the above can be a partial explanation.