The Knowledge@Wharton show on SiriusXM channel 111 recently invited Janice Bellace, Wharton professor of legal studies and business ethics; Janice Madden, professor of regional science and sociology at the University of Pennsylvania and a real estate professor at Wharton; and Thorgerdur Einarsdottir, professor of gender studies at the University of Iceland, to discuss the issues surrounding pay equality.