Temporary Workforce Planning with Firm Contracts: A Model and a Simulated Annealing Heuristic

Table 1

Monthly demands.

Month	PC Model
	1	2	3
1	720	210	640
2	370	790	500
3	1000	540	1000
4	230	390	450
5	760	490	450
6	830	440	980
7	930	930	900
8	320	250	360
9	690	1000	210
10	750	460	590
11	360	830	520
12	350	970	580