Explain what determines the \"optimal\" amount of a public goodand how this concept of optimality can change over time (as weelect new and different leaders). If you use any other sources, besure to cite them within the text as well as provide abibliographical citation at the end. Provide one \"unique\" (i.e.don't use one that a classmate has already used!) example of thefree rider problem that you have seen in your lives. From thisexample, identify what is causing the market failure and a possibleway to solve this problem.u
