Fiscal policies are derived from government actions that influence the economy through discretionary spending decisions made by Congress and the President, passive policies that automatically respond to economic changes, and structural policies designed to strengthen the economy over the long run. The document discusses the decline in discretionary fiscal policy due to implementation lags and political gridlock, as well as the rise of monetary policy actions by the Federal Reserve to influence interest rates and money supply to affect credit availability. It also covers changing economic politics and differing views among economists on the most critical problems to address.