1. what are the four key components that made up a macroeconomy under the expenditure approach and which one of the four is related to disposable personal income (dpi). be sure to state how. in other words, out of the four components, which one is influenced by dpi? 2. in your own words, provide a complete definition of gross domestic product (gdp). 3. comment on the differences between gdp and gnp (gross national product). provide examples. 4. define fiscal policy and what should the government do with fiscal policy in order to pull the economy out of a recession? 5. what are the four key components that made up a macroeconomy under the income approach?