2021, Set 1, Question 3 · Short · 5 points
Corn price floor with a government purchase program
Use a corn market graph to compute total revenue at equilibrium, then analyze a price floor: quantity traded, deadweight loss, and producer surplus when the government buys the surplus. Predict the long-run change in government purchases.
This exam had three free-response questions in a 60 minute section (10 minutes of reading and 50 of writing), with about half the time suggested for Question 1 and the rest split evenly between Questions 2 and 3, and the scoring guidelines label Question 1 long and Questions 2 and 3 short. The current exam has 3 free-response questions in 60 minutes. The skills these questions practice still count.
Lessons this question draws on
1 Read the question
The question is College Board's, from the 2021, Set 1 exam. It starts on page 5 of the PDF. College Board no longer posts this exam, so it opens from the copy of College Board's PDF that the Internet Archive saved on December 28, 2025.
2 Write your answer
Answer each part the way you would on the exam, in full sentences, with your work shown. Your writing saves as you type.
3 Score it
Score your answer against College Board's scoring guidelines, one point at a time. Give yourself a point only when your answer says what the guideline asks for.
Scoring guidelines (PDF, page 6) What the exam readers saw (Chief Reader report)
Question, scoring guidelines and Chief Reader report: College Board, from the Internet Archive. The title, summary are ours.