2009, Form B, Question 3 · 6 points

Two bus companies deciding on fares

Use a payoff matrix for two bus companies to find a best response, check for a dominant strategy, find the noncooperative outcome and the cooperative one, and rebuild the matrix after a subsidy offered only for lowering fares.

This exam had three free-response questions with 10 minutes of planning and 50 minutes of writing, and the directions suggested spending about half the time on Question 1 and splitting the rest 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 2009, Form B exam. It starts on page 4 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 August 16, 2022.

Open Question 3 (PDF, page 4)

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 4)

Question, scoring guidelines: College Board, from the Internet Archive. The title, summary are ours.