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Question
What is marginal product?
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Solution 1
Marginal product is the change in production for one unit change in variable factor, say labour. It’s expressed as MPL = `(∆Q)/(∆L)`.
Solution 2
Marginal product is the difference made to total product by producing one more unit of output.
Symbolically, MP = TPn − TPn-1 where TPn = Total Product of n units.
Or MP = TPn+1 − TPn
TPn-1 = Total Product of (n − 1) units.
TPn+1 = Total Product of (n + 1) units.
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