and throughput. Now, repeat the process for the polishing constraint. Clearly, this approach
can be tedious. Fortunately, the same information is produced as a by-product
of the simplex method. The simplex method produces what are called shadow prices.
Shadow prices indicate the amount by which throughput will increase for one additional
unit of scarce resource. For the Schaller Company example, the shadow prices
for the drilling and polishing resources are $180 and $60, respectively. Thus, Schaller
should focus on busting the drilling constraint because it offers the most improvement