GDP Counts the Dollar Value of Only Final Goods and Services

Multiple Choice

GDP counts the dollar value of only final goods and services because:

A) we can measure only the value of final goods and services, not the value of inputs.
B) if we counted the value of all goods, we would count inputs, such as the value of steel in a new automobile, more than once.
C) intermediate goods reduce GDP.
D) only final goods and services matter for the economy.