Question 1
Which one of the following would NOT be a barrier to firms entering an industry?
◦ Patents on key processes
◦ An upward-sloping long-run average cost curve
◦ Large initial capital costs
◦ Substantial economies of scale
◦ The threat of takeover by the existing firm(s)
Question 2
Which type of barrier to entry would allow an electricity distribution company to maintain a monopoly over the local supply of electricity?
◦ Ownership of a scarce input
◦ A patent
◦ Diseconomies of scale
◦ Legal controls