In a single sentence, contrast microeconomics and macroeconomics. Next, categorize each of the following issues as either a microeconomic issue, a macroeconomic issue, or not an economic issue.
a. The national unemployment rate
b. The decision of a worker to work overtime or not
c. A family's choice to have a baby
d. The rate of growth of the money supply
e. The national government's budget deficit
f. A student's allocation of study time across two subjects