philosophy

Please answer the following questions:
1- Fully explain what Peter Singer means when he claims that wealthy countries and their citizens, should give to famine relief until the point to where they reach the state of living at the level of marginal utility. Please explain your answer, in your own words.  (50 points)
2- Do you believe that, living at the level of marginal utility, would affect our economy in a negative way? Fully explain the reasoning for your view. (50 points)