What are some similarities and differences for atatürk's and reza shah pahlavi's national policies

They both wanted their respective countries to be more 'western' oriented. They are both probably rotating in their graves when they see what has happened.
Both were Muslims but believed in the separation of state and religion.
USA pulled the rug from under the Shah's feet because he was trying to gain influence in the area, which wasn't on the USA's agenda.
Ataturk had no extra-territorial aspirations, he wanted restore Turkey's pride in the country after the fall of the Ottoman empire.

high entry costs prevent new producers from entering the market.

explanation:

an oligopoly is a term used to clarify the structure of a particular market, industry, or organization. a market is considered oligopolistic or amazingly focused when it is shared between a few companies.