How did Goldman Sachs make more than $1 billion with credit scores?, business and finance homework help

Business Finance

In the attachment there is an article from Wall Street Journal. Please read it and answer the following question. The questions should be answered in a paragraph form. So, each answer written below the question.

Questions:

1. How did Goldman Sachs make more than $1 billion with credit scores?

2. Why do you think Goldman was successful at pushing data mining at TransUnion?

3. Why would Goldman take a firm public three years after buying it?

4. What is private-equity investing and how does it make money?

5. Should the Volcker Rule be rolled back? Why or why not?