Laws that are used to prevent firms from colluding and setting high prices are called

If getting accepted into college is very difficult because of high standards of intelligence and ability, but students learn absolutely nothing while in college, it is most likely that

A) they will not be hired upon graduation. B) attendance sends a signal to employers regarding ability. C) nobody will want to go to college. D) a college degree is not a credible signal.

Assume that you assign the following subjective probabilities for your final grade in your econometrics course (the standard GPA scale of 4 = A to 0 = F applies): Grade Probability A 0.20 B 0.50 C 0.20 D 0.08 F 0.02 The expected value is:

A) 3.0 B) 3.5 C) 2.78 D) 3.25