FIGURE 5.1
Total Product and
Marginal Product
Part (a) graphs labor’s
total product; part
(b) depicts labor’s
marginal product.
500
400
300
200
100
0 10 20 30 40 50 60 70 80 90 100 110 120 130 140
Total Output
20,000-square-foot plant
10,000-square-foot plant
(a) Labor's Total Product
Number of Workers
5.0
4.0
3.0
2.0
1.0
0
10 20 30 40 50 60 70 80 90 100 110 130 140
Marginal Product
(b) Labor's Marginal Product (10,000-Square-Foot Plant)
Number of Workers
–1.0
–2.0
120
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