An Edgeworth box can be used to determine the efficient input allocation between two firms. In this case, Cereal, Inc.’s and Pancake, Inc.’s labor inputs are on the horizontal axes and their capital inputs are shown on the vertical axes. Q_C1, Q_C2, and Q_C3 are examples of Cereal, Inc.’s isoquants, and Q_P1, Q_P2, and Q_P3 are examples of Pancake, Inc.’s isoquants.