Three students have each saved $1,000. Each has an investment opportunity in which he or she can invest up to $2,000. Here are the rates of return on the students’ investment projects: Student Return
(Percent)
Hubert 4
Manuel 7
Poornima 15
Assume borrowing and lending is prohibited, so each student uses only personal saving to finance his or her own investment project.
Complete the following table with how much each student will have a year later when the project pays its return.
Student Money a Year Later
(Dollars)
Hubert
Manuel
Poornima
Now suppose their school opens up a market for loanable funds in which students can borrow and lend among themselves at an interest rate r.
A student would choose to be a lender in this market if his or her expected rate of return is than r.
Suppose the interest rate is 6 percent.
Among these three students, the quantity of loanable funds supplied would be
$
, and quantity demanded would be
$
.
Now suppose the interest rate is 12 percent.
Among these three students, the quantity of loanable funds supplied would be
$
, and quantity demanded would be
$
.
At an interest rate of
%
, the loanable funds market among these three students would be in equilibrium. At this interest rate, would want to borrow, and would want to lend.
Suppose the interest rate is at the equilibrium rate.
Complete the following table with how much each student will have a year later after the investment projects pay their return and loans have been repaid.
Student Money a Year Later
(Dollars)
Hubert
Manuel
Poornima
True or False: Only lenders are made better off, and borrowers are made worse off.

True
False