For each of the following scenarios, use a well-labeled diagram
of the supply and demand for saving and investment to analyze the
effects on the real interest rate, equilibrium national savings,
and equilibrium investment.
a) U.S. military involvement abroad declines. As a result, the
government deficit shrinks.
b) A new generation of computer-controlled machines becomes
available. These machines produce manufactured goods much more
quickly with fewer defects.
c) Concerns about job security cause people to engage in more
precautionary savings....