When does a production function satisfy decreasing returns to scale?


Diminishing or decreasing returns to scale where the increase in output is more than proportionate increase in quantities of factor inputs it is called diminishing returns to scale.

decreasing.jpg


Here, IQ1, IQ2 and IQ3 represent the total output of 1000 units, 2000 units and 3000 units respectively.


As we can see EE1 < E1E2 < E2E3, so it is decreasing returns to scale.


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