If a producer's PPF has good X on the horizontal axis and good Y on the vertical axis, then the (absolute value of the) slope of the PPF measures the marginal cost of good Y, measure in units of good X. True or False.

From an efficiency viewpoint, we will never want producer 1 to produce any Y, unless producer 2 is producing 10 units of good Y. True or False.

From an efficiency viewpoint, we will never want producer 1 to produce any X, unless producer 2 is producing 20 units of good X. True or False