Farm Planning: How Much to Grow and Rear

Table 8.2 shows the variables that are used in this example.

Table 8.2: Variables

Variable Name	Interpretation
`NumCows[age,year]`	Number of cows of each age per year
`NumBullocksSold[year]`	Number of bullocks sold per year
`NumHeifersSold[year]`	Number of heifers sold per year
`GrainAcres[group,year]`	Acres of grain per group and year
`GrainBought[year]`	Tons of grain bought per year
`GrainSold[year]`	Tons of grain sold per year
`SugarBeetAcres[year]`	Acres of sugar beet per year
`SugarBeetBought[year]`	Tons of sugar beet bought per year
`SugarBeetSold[year]`	Tons of sugar beet sold per year
`NumExcessLabourHours[year]`	Number of additional labour hours per year
`CapitalOutlay[year]`	Number of capital outlays per year
`GrainGrown[group,year]`	Tons of grain grown per group and year
`SugarBeetGrown[year]`	Tons of sugar beet grown per year
`Revenue[year]`	Revenue per year
`Cost[year]`	Cost per year
`Profit[year]`	Profit per year