2015, Question 2 · 5 points
Two sandwich shops choosing high or low prices
Find each shop's dominant strategy and the outcome without cooperation, then rebuild the payoff matrix with a subsidy for low prices and explain how choices and profits change.
This exam had three free-response questions to answer in 50 minutes of writing after 10 minutes of planning, with about half the time suggested for Question 1 and the rest split evenly between Questions 2 and 3. 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 2015 exam. It starts on page 3 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 22, 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 3) What the exam readers saw (Student Performance Q&A)
Question, scoring guidelines and Chief Reader report: College Board, from the Internet Archive. The title, summary are ours.