Problem
Explain the significance of macroeconomics, gross domestic product, intermediate products, secondhand sales, nonmarket transactions, underground economy, base year, real GDP, current GDP, GDP per capita, gross national product, net national product, national income, personal income, disposable personal income, household, unrelated individual, family, output-expenditure model, and net exports of goods and services
The response should include a reference list. Double-space, using Times New Roman 12 pnt font, one-inch margins, and APA style of writing and citations.