The Federal Reserve cannot put a dollar in anyone’s pocket, provide jobs for very many people, or buy more than a tiny amount of goods and services that the nation produces. But the 86-year-old government bank can have an enormous impact on how you spend, invest, or borrow money. . . . That is because the Fed . . . is in charge of the nation’s monetary policy, taking actions almost daily to help determine how much money is available, how easily it may be borrowed, and how costly it will be. Summarize what the passage is saying about the Federal Reserve’s participation in the economy and its impact on it.