ch4 - 2. Assume that you have saved $20,000 and that you are considering a couple of options. One of them is to use these funds as a down pay- ment on a newly built house. The other one is to buy a U.S. savings bond. a) Which option will add to the economy's capital stock, and which one will not? Explain why. b) How would a decrease in the real interest rate affect your decision