a- Long-term economic profit are possible in the Monopoly and Oligopoly market structures due to barriers of entry. List two examples of different…

a- Long-term economic profit are possible in the Monopoly and Oligopoly market structures due to barriers of entry. List two examples of different types of barriers: 

b- Monopolies are economically inefficient. List the consequences of this inefficiency as far as market price and quantity are concern:                                                                                                                     

"Our Prices Start at $11.99. As Our First Client, Use Coupon Code GET15 to claim 15% Discount This Month!!":

Get started