Relationship between average and marginal productivity What is the relationship between average and marginal
productivity?”Where marginal product exceeds average productivity,
average productivity rises.And where marginal productivity is less than average
productivity, average productivity declines when the variable input increases.By law of diminishing marginal product, MP is decreasing
with the increase of inputs, as it goes down beyond the average productivity,
it will make the average productivity goes down.”Think about the following example,Two twins are enrolled in ECO 365. They each had a
“B” average (GPA = 3.0) before taking the class.Twin One gets a “C” in the course. What happens to
her GPA? Twin Two gets an “A” in the class. What happens to her GPA?
Twin One will have a lower GPA and Twin Two a higher GPA. A
“marginal” grade lower than the average will pull down the average. A
“marginal” grade higher than the average will increase the average.
The same is true of MP and AP.