Use the market for saving and investment to show the effect of the following: A) Firms are forced to close down due to the coronavirus outbreak. B) People experience falling incomes causing disposable income to decrease. C) Investors and savers read an article that reports positive news about the future of the economy. D) Homeowners anticipate their properties will increase in value over the next 10 years. Increase or decrease or does not shift Savings function? Investment function? Real interest rate? Level of savings and investment