23. Problems and Applications Q3 Indicate whether each of the following descriptions represents saving or investment, as defined by a macroeconomist. Description Saving Investment This occurs when a person or firm purchases new capital. 0 O This occurs when a person's income exceeds his consumption. 0 O Indicate whether each of the following situations represents saving or investment. Situation Saving Investment Your family takes out a mortgage and buys a new house. 0 O You use your $200 paycheck to buy stock in AT&T. O 0 Your roommate earns $100 and deposits it in his account at a bank. 0 O O 0 You borrow $1,000 from a bank to buy a car to use in your pizza delivery business