Hey I need help finding why "Capitalism has produced great wealth and inequalities in today's world."
http://www.google.com/search?q=capitalism&rls=com.microsoft:en-us:IE-SearchBox&ie=UTF-8&oe=UTF-8&sourceid=ie7&rlz=1I7SUNA
There are several good articles here. Be sure to read at least the first six to get perspective. Be sure to be looking for seeming opposites -- the positives and the negatives.
Then when you have come to a conclusion, write up what you think, and re-post. Someone here will be happy to critique your thinking.
=)