I need help with understanding #10 to #13. I already finished number 14.

effect on y" effect on y effect on P H : 10. Explain the long-run tradeoff a society faces if it chooses to increase aggregate savings. (Hint: What is the opportunity cost of increased aggregate savings? What is the benefit of increased aggregate savings?) 11. True, False, Uncertain (circle one; explain your answer): "A dollar is a dollar - $1,000 a year from now is worth as much as $1,000 today." 12. True, False, Uncertain (circle one; explain your answer): "A rapid recovery from a recession among the US's trading partners would help bring the US out of a recession." 13. True, False, Uncertain (circle one; explain your answer): "If the US economy goes into a deep reces- sion it's unlikely to have much effect on other countries around the world because, after all, each coun- try has its own economy." 14. Find an application or example (good or bad) of one of the ideas covered in Chapters 19 or 20 from the Wall Street Journal, the Economist, or the New York Times. Write an at-least-one-page essay dis- assignment. cussing the economics of the article you selected. Attach the article or a copy and your essay to this