I need help with this assignment. Please helping me to explain. Thank you.
With the use of examples, explain three different barriers to entry to a maket and how these barries might affect market structure. In the past, drug companies, ultilities, the postal service and others have been heavily protected by entry barries. Evaluate the possible effects on efficiency and resource allocation and removing these barries. Finally examnie whether these barries can be or have been conqured and explain.