> And no one is measuring output in terms of the number of bowls of soup produced by homeless shelters; those are converted to dollars based on a current index

> And no one is measuring output in terms of the number of bowls of soup produced by homeless shelters; those are converted to dollars based on a current index price. The Bureau of Labor Statistics does have multiple teams dedicated to documenting how price is related to quantity of output. They don't literally count bowls of soup at every homeless shelter, but they do document millions of price vs quantity measurements on a regular basis. This data is then used in the calculation of productivity.