Answer:
an improvement in the education level of the work force of a nation
Explanation:
The production possibility curve is a curve that shows the various quantities of two goods an economy can produce at a given level of technology and amount of labour force.
Factors that leads to an outward shift of the production possibility curve;
1. Increase in labour force
2. Increase in education level of the Labour force
3. Technological advancement
Shifting resources from the production of one good to the production of another leads to a movement along the production possibility curve.
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