The outward bowing shape of the production possibilities curve is due to: Increasing opportunity costs as more and more of one good is produced.
A production possibility is a curve that shows the two combinations of goods an economy can produce given that its resources are fully employed.
The production possibility curves is bowed outwards because of increasing opportunity costs as more and more of one good is produced.
If more of one good is to be produced, more of the second good would be given up to increase the production of the first good.
Hence, the outward bowing shape of the production possibilities curve is due to Increasing opportunity costs as more and more of one good is produced.
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