The United States provides most of its economic aid through the

If, in a closed economy, real GDP is $30 billion, consumption is $20 billion, and government purchases are $5 billion, what is total saving in the economy?

A) $5 billion B) $15 billion C) $45 billion D) $55 billion

A shortage of a good means

a. an excess supply of the good b. an excess demand of the good c. quantity demanded is less than the quantity supplied d. the quantity supplied exceeds the quantity demanded e. price is higher than its equilibrium level in the market