Job X, which has a duration of four days, is due by the close of business on Friday, December 23. Without looking at the work already at X's required resource, the scheduler schedules X to be begun immediately and assumes that X will be done four days from now. This is an example of

Suppose that, on the basis of a nation’s production possibilities curve, an economy must sacrifice 10,000 pizzas domestically to get the 1 additional industrial robot it desires but that it can get the robot from another country in exchange for 9,000 pizzas. now consider the following statement: “through international specialization and trade, a nation can reduce its opportunity cost of obtaining goods and thus ‘move outside its production possibilities curve.’”