Production Possibilities Frontier - Hanging Out/Going Out    The total number of hours spent in these two activities is always 50 hours at any point along the PPF; and the opportunity cost of one hour of either activity in terms of the other is always 1. If you spend 30 hours per week Hanging Out you canonly spend 20 hours per week Going Out and vice versa.

   See if you can think of other situations that would lead to a PPF with a constant slope (straight line). That is, where opportunity cost doesn't vary, no matter where one is on the PPF.

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