What new factor is transforming the promotion, production, presentation, and marketing of musical events in the twenty-first century?

a) The management of musicians by impresario.
b) The involvement of nonprofit organizations.
c) The necessity for private donations.
d) New powerful corporate involvement.

Consider two similar industries, portal crane manufacturing (pcm) and forklift manufacturing (flm). the pcm industry has exactly three incumbents with annual sales of $800 million, $200 million and $100 million, respectively. the flm industry has also exactly three incumbents, with annual sales of $500 million, $450 million and $400 million, respectively. which industry is more likely to experience a higher level of rivalry?