4. Describe the differences between a public and private corporation. Why might a private corporation want to go public? Why might a public corporation want to go private? Entire answer should be a paragraph or two.

5. In our discussion of the third case study (Compsis at a crossroads) we found out that highways are run by private concessionaires in Brazil, whereas they are run by the government in the United States. Because of this, how is the process for obtaining Electronic Toll Collection contracts different in the US than it is in Brazil? (answer in about a paragraph)