Write an essay of 1,000-1,250 words regarding public goods. Include the following:

  1. Explain what a public good is.
  2. Discuss how a public good is different than a private good.
  3. Discuss whether only government can supply a public good.
  4. What are the challenges related to public goods.
  5. How should the “free rider” problems be addressed?

I need this with at least 4 references.