To begin with, John has 6 units of Good X and Jane has 3 units of Good X. If X is measured horizontally in an Edgeworth box, then how wide should the Edgeworth box be?
A)3 units
B)6 units
C)9 units
D)18 units

Question

Quizplus · Accepted Answer

The width of the Edgeworth box is equal to the total amount of Good X in the economy, which is the sum of John's and Jane's units of Good X. Therefore, the width should be 6 units (from John) + 3 units (from Jane) = 9 units. The width of the Edgeworth box is the total amount of Good X in the economy, which is the sum of John's and Jane's Good X. Therefore, the width is 6+3=9 units.

To Begin With, John Has 6 Units of Good X