Final answer:
Technological progress is a key factor influencing a nation's production possibilities curve.
Explanation:
The rate of technological progress is the factor that would affect the position and shape of a nation's production possibilities curve. Technological progress impacts efficiency and productivity, leading to shifts in the production possibilities curve. Increasing the quantity or quality of factors of production like labor and capital, along with advancements in technology, will shift the curve outward, reflecting economic growth.
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