What is the meaning of the term “going public”? Explain the important issue

  
What is the meaning of the term “going public”? Explain the important issues  involved in deciding whether to go public. Include cost estimates, advantages,  and disadvantages.
What are some  of the reasons why strategy evaluation is becoming increasingly difficult      with the passage of time?
150 words per question
  
David, F.R. Strategic Management: Concept and Cases (17th ed.).