Foreword and acknowledgment -- Humor, business, and society -- From society to business : humor's use and roles in activist movements -- From business to society : humor's use and roles in marketing, corporate communications, and public relations -- Society within business : humor's use and...

Should principals explain and justify their evaluations? Suppose the principal's evaluation is private information, but she can provide justification by sending a costly cheap-talk message. If she does not provide justification, her message space is restricted, but the message is costless. I...