6. What determines the amount of income a household will earn in the resource market? Why do some households earn higher incomes than others? 7. What determines the amount of money a rm will earn in the product market? Why do some rms earn so much more money than others in a market economy? 8. What is the goal of a household in a market economy? Based on this simple goal, what is the best way for a household to achieve it? 9. What is the goal of a rm in a market economy? '10. What makes the exchanges that take place in a market economy \"mutually benecial\"? 11. What role does money play in the circular ow model? 12. What role do prices play in the circular ow model