Table 7: Average objective function costs by OPL and heuristic.
(a)

MIP

A, V5658.46842.56645.84451.123597.8
A, W5450.56214.07387.14702.623754.2
B, V32158.16915.513451.76877.459402.7
B, W34654.55677.213542.46150.360024.4

(b)


A, V7726.24102.46699.35120.823648.7
A, W9451.24412.35673.14672.424208.9
B, V34248.65052.017536.14765.661602.4
B, W35975.25735.014196.55471.961378.5

(c)


A, V6314.56712.96513.14731.324271.8
A, W5578.06325.37392.24825.824121.3
B, V32574.56937.814782.96925.661220.9
B, W35112.15752.313945.96184.260994.5

: production cost, : holding cost, : setup cost, : purchasing cost, and : total cost.