This information is part of the Business Simulation Library (BSL). Please support this work and ► donate.
The output y is the product of the amount of some resource (u_res) and its ability to generate a flow/action (i.e., its productivity u_prod).
y[1/s] = u_res[1] · u_prod[1/s]
Additonal information can be found in [6, p. 109] and on Jim Hines's Molecules of Structure website: →Flow From Resource.