Uber case

Choose one of the following questions and answer:
1.How is the sharing economy characterized? Can sharing econamies go global? Why?
2.What challenges does Uber face during global expansion? Is Uber’s business vulnerable since it is easy for others (Didi in China and Ola in India) to imitate? How can Uber overcome the challenges from foreign governments?
3.Due to the furious competition from rivals in global markets (China, India, or Southeast Asian), should Uber leave these markets and focus only on
the U.S. market? Why?