Microeconomics 1st Edition by Dean Karlan,Jonathan Morduch

Exercise 7

Say whether each of the following situations involves screening or signaling.
a. Auto shops and motels advertise that they are AAA-approved.b. Employers check interviewees' Facebook or MySpace profiles before hiring one of them.c. Applicants must pass an exam before becoming eligible for a civil service position.d. People wear expensive clothing with large brand names or logos.