The U.S. government and Congress started anti-trust investigations in 2019 into American high-tech success stories Amazon, Apple, Facebook, and Google. This brings up a few questions. What is a monopoly? When is it illegal? What causes them to happen? What were the famous monopolies of the past? How did they end up? Are they good or evil? Why are our home-grown success stories a target of investigations? Are there monopolies in other countries? How are they treated in their home country? How important is technology in these matters? These and other questions will be covered in this course.