kth machinery type to supply the ith resource; Grk, the usage of the rth machinery restriction when purchasing the kth machinery type; Cjm, the per unit net profit of Xjm; Aijkm, the per unit use by Xjm of the ith capacity resource supplied by purchasing machine k; Dnjm, the per unit usage of fixed resources of the nth type by Xjm; bn, the endowment of the nth resource in the year being modeled; and er, the endowment of the rth machinery restriction. Handling Indivisibilities Machinery Selection Machinery Use Continuous Variables Plow with Tractor 1 Plow with Tractor 2 Disc 8 Harvest with and Plow 1 and Plow 2 and Plow 1 ans Plow 2 Tractor 1 Tractor 2 Tractor 1 Tractor 2 Machinery Acquisition Integer Variables in Period in Period Planter Planter Harvester Harvester Input Tractor Plow Planter Disc Harvester Crop 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 Objectives (max) -5000 -9000 -1000 -1200 -2000 -2100 -1000 -1200 -10000 -12000 -1.46 -1.22 -0.73 -0.61 -9.33 -8.35 -9.33 -8.25 2.5 -110 Tractor 1 1 -160 .2 .1 Capacity 2 -180 .2 .1 .1 .0833 in Period 3 -200 .33 .25 Tractor 2 1 -160 .1 .05 Capacity 2 -180 .1 .05 .05 .04167 in Period 3 -200 .33 .25 Plow 1 1 -160 .2 .1 Capacity in Period 2 -180 .2 .1 Plow 2 1 -160 .1 .05 Capacity in Period 2 -180 .1 .05 Capacity of 1 -180 .1 0.05 Planter 2 -180 0.0833 .0417 Capacity of 1 -180 .1 0.05 Disc 2 -180 0.0833 .0417 1 -200 .33 .33
kth machinery type to supply the ith resource; Grk, the usage of the rth machinery restriction when purchasing the kth machinery type; Cjm, the per unit net profit of Xjm; Aijkm, the per unit use by Xjm of the ith capacity resource supplied by purchasing machine k; Dnjm, the per unit usage of fixed resources of the nth type by Xjm; bn, the endowment of the nth resource in the year being modeled; and er, the endowment of the rth machinery restriction. Handling Indivisibilities Machinery Selection Machinery Use Continuous Variables Plow with Tractor 1 Plow with Tractor 2 Disc 8 Harvest with Crop Input Machinery Acquisition Integer Variables and Plow 1 and Plow 2 and Plow 1 ans Plow 2 Tractor 1 Tractor 2 Tractor 1 Tractor 2 Tractor Plow Planter Disc Harvester in Period in Period Planter Planter Harvester Harvester 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 Objectives (max) -5000 -9000 -1000 -1200 -2000 -2100 -1000 -1200 -10000 -12000 -1.46 -1.22 -0.73 -0.61 -9.33 -8.35 -9.33 -8.25 2.5 -110 Tractor 1 Capacity in Period 1 -160 .2 .1 2 -180 .2 .1 .1 .0833 3 -200 .33 .25 Tractor 2 Capacity in Period 1 -160 .1 .05 2 -180 .1 .05 .05 .04167 3 -200 .33 .25 Plow 1 Capacity in Period 1 -160 .2 .1 2 -180 .2 .1 Plow 2 Capacity in Period 1 -160 .1 .05 2 -180 .1 .05 Capacity of Planter 1 -180 .1 0.05 2 -180 0.0833 .0417 Capacity of Disc 1 -180 .1 0.05 2 -180 0.0833 .0417 1 -200 .33 .33