Monopoly Market

Answer the following research essay:

(( Discuss why competitive markets are usually believed by economists to lead to more efficient market outcomes relative to a monopoly market. ))

NOTE:

1. Please make the writing simple as I am an overseas student and English is my second language.

2. Please make sure that your references (sources) are correct and NEW as possible. Also add some quotations from your sources.

3. I need the essay in the UK English