Describe the Federal Reserve's mandate and how interest-rate policy cools or stimulates the economy.
The Federal Reserve is the economy's thermostat-keeper. Its dual mandate: stable prices (inflation around 2%) and maximum employment. Its main dial is the short-term interest rate — effectively, the price of borrowing money. The Fed doesn't set your mortgage rate directly; it sets the base rate banks work from, and everything else prices off that.
The logic is straight supply-and-demand for money. Economy overheating, prices climbing → RAISE rates → borrowing costs more → families delay houses and cars, firms delay expansion → spending cools → inflation eases. Economy stalling, jobs vanishing → CUT rates → borrowing gets cheap → spending and hiring revive. The tragedy of the job: the medicine works with a lag and always has a side effect — cooling inflation risks jobs, boosting jobs risks inflation. Every Fed meeting is that trade-off, live.
Mastery looks like: They can trace a rate change through borrowing → spending → prices/jobs in both directions.
Common stumbles: Thinking the Fed sets all prices/rates directly; expecting instant effects; treating either policy direction as costless.