Manpower Planning: How to Recruit, Retrain, Make Redundant, or Overman

Index Sets and Their Members

The following index sets and their members are used in this example:

$\text {worker} \in \text {WORKERS}$
$\text {period} \in \text {PERIODS0}$
$\text {period} \in \text {PERIODS} = \text {PERIODS0} \setminus \{ 0\}$
$(i,j) \in \mr{RETRAIN\_ PAIRS}$ : worker i retrained as worker j
$(i,j) \in \mr{DOWNGRADE\_ PAIRS}$ : worker i downgraded to worker j