Cost-Benefit Balance
At equilibrium, the Human Economic cost of production (P) will equal the Realized Effective Value (P) when Consumers consume the quantity produced (Q).
At equilibrium, the quantity produced will equal the quantity demanded by consumers.
At equilibrium. The Optimum level of Human Health (H*) will be achieved, given a particular technological environment and natural limits.
At any other point along the Quantity axis, the level of Human Health (H*) can be increased by changing the quantity (Q) consumed by the Consumer.
Note that these two curves pictured here are generalizations for the purposes of this exposition.
Students of Economics spend quite some time studying the various factors that influence the detailed shape of each of these curves in real life.
For real-life examples of particular commodities or actions, and real-life examples of Health-Units realized from a quantity consumed or produced, the shape of the curves can vary quite a bit. But the general shape remains the same.