Which of the following represents a consumer's optimum?

Refer to Scenario 12.1. What is the probability of Simon trying to rescue the man and Paula not helping?

A) 9% B) 21% C) 49% D) 70%

Evidence in support of the hypothesis that unions increase the productivity of union workers is

A) the fact that union wages are greater than nonunion wages. B) there is an excess supply of labor at the union wage rate. C) that unionized firms face lower turnover rates than nonunion firms do. D) that most contracts are settled without a strike.