What are the implications of the informal economy for firms that operate only in the formal economy?

Read: “The Informal Economy: What it is and WHY it is important?”Answer the questions below (With six PEER-REVIEWED sources for support):1. What are the implications of the informal economy for firms that operate only in the formal economy?2. When firms consider analyzing their competition, should they include firms in the informal economy? Please explain why or why not.3. What opportunities does the informal economy present to firms operating in the formal economy?4. What threats does the informal economy present to firms operating in the formal economy?5. How do firms operating in the formal economy identify and analyze the parts of the informal economy relevant to their strategies?