suppose that hiring a third worker at the campus coffee shop increases output from $150 per hour to $210 per hour. what is the marginal product of labor per hour from adding that third worker?

The marginal product of labor (MPL) is a company's increase in total production when one additional unit of labor is added (in most cases, one additional employee) and all other factors of production remain constant.

How to calculate marginal product of labor?
Marginal of product formula =

Change in production output / change in input labor

Now let's use the formula to calculate campus coffee shop's marginal product of labor
change in production output = $210 - $150 = $60
Change in input labor = 3-2 = 1
= 60 / 1

= $60 per hour.

So, the marginal product of labor per hour by adding third worker would be $60 per hour.

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