Problem: What counts as GDP (1)? By how much does GDP rise in each of the following scenarios? Explain.
(a) You spend $5,000 on college tuition this semester.
(b) You buy a used car from a friend for $2,500.
(c) The government spends $100 million to build a dam.
(d) Foreign graduate students work as teaching assistants at the local university and earn $5,000 each.