Line XX is the production possibility curve (PPC) of a worker picking peas and beans in a 10 hour working day.
What would cause the worker’s PPC to shift to the line YY?
1 )
a machine that increases the worker’s pea picking productivity only
2 )
a new work schedule where the worker spends 6 hours per day picking peas and only 4 hours picking beans
a reduction in working hours to 8 per day and a machine that increases the worker’s pea picking productivity
4 )
a reduction in working hours to 8 per day only
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