utilized capacity=
	 Capacity  * capacity utilization fraction
	~	
	~		|

capacity utilization fraction=
	CAPACITY UTILIZATION LOOKUP(smoothed leadtime)
	~	
	~		|

smoothed leadtime=
	 SMOOTHI(leadtime, UTILIZATION UPDATE DELAY,1.4)
	~	
	~		|

ACQUISITION DELAY = 6
	~	
	~		|

bookings = Sales Force * sales productivity
	~	
	~		|

Capacity = INTEG(capacity additions, INITIAL CAPACITY)
	~	
	~		|

capacity additions = DELAY FIXED(orders for capacity, ACQUISITION DELAY, 0)
	~	
	~		|

Capacity Coming on Line = INTEG(+orders for capacity-capacity additions, 0)
	~	
	~		|

CAPACITY ORDER QUANTITY = 20
	~	
	~		|

capacity order signal =  IF THEN ELSE(leadtime > LEADTIME THRESHOLD
                                                               :AND: Capacity Coming on Line\
		 = 0, 1,
 0)
	~	
	~		|

CAPACITY UTILIZATION LOOKUP  ([(0,0)-(10,10)],(0,0),(1,0.63)
,(2,0.75),(3,0.83),(4,0.9),(5,0.945),(6,0.99),(7,0.99),(8,0.99)
,(9,0.99),(10,0.99) )
	~	
	~		|

desired sales force = revenue allocated to sales / SALES FORCE COMPENSATION
	~	
	~		|

FRACTION OF REVENUE ALLOCATED TO SALES = 0.4
	~	
	~		|

HIRING AND LAYOFF DELAY = 3
	~	
	~		|

hiring and layoffs = (desired sales force - Sales Force) / HIRING AND LAYOFF DELAY
	~	
	~		|

INITIAL CAPACITY = 20
	~	
	~		|

INITIAL SALES FORCE = 4
	~	
	~		|

leadtime = Order Backlog / shipments
	~	
	~		|

LEADTIME THRESHOLD = 5.5
	~	
	~		|

Order Backlog = INTEG(bookings-shipments, 5 * INITIAL SALES FORCE)
	~	
	~		|

orders for capacity = capacity order signal * CAPACITY ORDER QUANTITY / TIME STEP
	~	
	~		|

perceived leadtime = SMOOTH(leadtime, PERCEPTION DELAY)
	~	
	~		|

PERCEPTION DELAY = 2
	~	
	~		|

revenue = bookings * REVENUE PER UNIT SOLD
	~	
	~		|

revenue allocated to sales = revenue * FRACTION OF REVENUE ALLOCATED TO SALES
	~	
	~		|

REVENUE PER UNIT SOLD = 15
	~	
	~		|

Sales Force = INTEG(hiring and layoffs, INITIAL SALES FORCE)
	~	
	~		|

SALES FORCE COMPENSATION = 25
	~	
	~		|

sales productivity =5 - 0.25 * (perceived leadtime - 2)
	~	
	~		|

shipments = utilized capacity
	~	
	~		|

UTILIZATION UPDATE DELAY = 1
	~	
	~		|

********************************************************
	.Control
********************************************************~
		Simulation Control Paramaters
	|

FINAL TIME  = 72
	~	Month
	~	The final time for the simulation.
	|

INITIAL TIME  = 0
	~	Month
	~	The initial time for the simulation.
	|

SAVEPER  = 
        TIME STEP
	~	Month
	~	The frequency with which output is stored.
	|

TIME STEP  = 0.25
	~	Month
	~	The time step for the simulation.
	|

\\\---/// Sketch information - do not modify anything except names
V300  Do not put anything below this section - it will be ignored
*View 1
$0,0,Arial|9||0-0-0|0-0-0|0-0-0|-1--1--1|-1--1--1
10,1,Sales Force,232,-107,40,20,3,3,0,0,0,0,0,0
12,2,48,124,-108,8,8,0,3,0,0,-1,0,0,0
11,3,0,152,-107,4,8,34,3,0,0,1,0,0,0
10,4,hiring and layoffs,152,-85,34,14,40,3,0,0,0,0,0,0
10,5,HIRING AND LAYOFF DELAY,196,-14,24,24,8,3,0,0,0,0,0,0
10,6,REVENUE PER UNIT SOLD,23,112,48,15,8,3,0,0,0,0,0,0
10,7,capacity utilization fraction,300,208,30,21,8,3,0,0,0,0,0,0
10,8,perceived leadtime,92,270,32,16,8,3,0,0,0,0,0,0
10,9,PERCEPTION DELAY,122,339,42,15,8,3,0,0,0,0,0,0
10,10,leadtime,216,223,28,8,8,3,0,0,0,0,0,0
10,11,UTILIZATION UPDATE DELAY,324,334,38,23,8,3,0,0,0,0,0,0
10,12,INITIAL SALES FORCE,305,23,45,16,8,3,0,0,0,0,0,0
10,13,desired sales force,108,-43,40,12,8,3,0,0,0,0,0,0
10,14,SALES FORCE COMPENSATION,56,-114,53,17,8,3,0,0,0,0,0,0
10,15,FRACTION OF REVENUE ALLOCATED TO SALES,15,-58,46,28,8,3,0,0,0,0,0,0
10,16,utilized capacity,386,162,24,15,8,3,0,0,0,0,0,0
10,17,CAPACITY UTILIZATION LOOKUP,403,242,41,22,8,3,0,0,0,0,0,0
10,18,smoothed leadtime,279,277,32,14,8,3,0,0,0,0,0,0
10,19,revenue allocated to sales,88,12,56,16,8,3,0,0,0,0,0,0
10,20,Capacity,476,192,40,20,3,3,0,0,0,0,0,0
10,21,Order Backlog,200,136,40,20,3,3,0,0,0,0,0,0
12,22,48,55,138,8,8,0,3,0,0,-1,0,0,0
11,23,0,96,136,4,8,34,3,0,0,1,0,0,0
10,24,bookings,96,156,27,12,40,3,0,0,0,0,0,0
12,25,48,356,135,8,8,0,3,0,0,-1,0,0,0
11,26,0,300,136,4,8,34,3,0,0,1,0,0,0
10,27,shipments,300,152,32,8,40,3,0,0,0,0,0,0
10,28,revenue,80,67,28,11,8,3,0,0,0,0,0,0
10,29,sales productivity,53,209,32,15,8,3,0,0,0,0,0,0
10,30,capacity order signal,380,376,43,16,8,3,0,0,0,0,0,0
10,31,LEADTIME THRESHOLD,259,422,40,20,8,3,0,0,0,0,0,0
10,32,Capacity Coming on Line,480,320,52,20,3,3,0,0,0,0,0,0
10,33,CAPACITY ORDER QUANTITY,408,427,32,20,8,3,0,0,0,0,0,0
12,34,48,476,404,8,8,0,3,0,0,-1,0,0,0
11,35,0,476,379,8,4,33,3,0,0,4,0,0,0
10,36,orders for capacity,516,379,31,15,40,3,0,0,0,0,0,0
10,37,INITIAL CAPACITY,475,147,52,9,0,3,0,0,-1,0,0,0
10,38,ACQUISITION DELAY,394,297,47,13,8,3,0,0,0,0,0,0
11,39,0,476,256,8,4,33,3,0,0,4,0,0,0
10,40,capacity additions,517,256,33,17,40,3,0,0,0,0,0,0
10,41,TIME STEP,502,426,40,9,0,2,0,3,-1,0,0,0,128-128-128,0-0-0,|0||128-128-128
1,42,23,21,4,0,0,22,0,0,0,-1--1--1,,1|(130,136)|
1,43,23,22,100,0,0,22,0,0,0,-1--1--1,,1|(77,136)|
1,44,26,25,4,0,0,22,0,0,0,-1--1--1,,1|(326,136)|
1,45,26,21,100,0,0,22,0,0,0,-1--1--1,,1|(268,136)|
1,46,29,24,0,0,0,0,0,0,0,-1--1--1,,1|(71,186)|
1,47,3,1,4,0,0,22,0,0,0,-1--1--1,,1|(174,-107)|
1,48,3,2,100,0,0,22,0,0,0,-1--1--1,,1|(140,-107)|
1,49,5,4,0,0,0,0,0,0,0,-1--1--1,,1|(174,-48)|
1,50,15,19,0,0,0,0,0,0,0,-1--1--1,,1|(52,-21)|
1,51,14,13,0,0,0,0,0,0,0,-1--1--1,,1|(79,-81)|
1,52,19,13,0,0,0,0,0,0,0,-1--1--1,,1|(95,-10)|
1,53,13,4,0,0,0,0,0,0,0,-1--1--1,,1|(123,-58)|
1,54,28,19,0,0,0,0,0,0,0,-1--1--1,,1|(82,48)|
1,55,6,28,0,0,0,0,0,0,0,-1--1--1,,1|(48,91)|
1,56,8,29,0,0,0,0,0,0,0,-1--1--1,,1|(75,244)|
1,57,27,10,0,0,0,0,0,0,0,-1--1--1,,1|(263,183)|
1,58,21,10,0,0,0,0,0,0,0,-1--1--1,,1|(207,178)|
1,59,31,30,0,0,0,0,0,0,0,-1--1--1,,1|(311,402)|
1,60,1,23,1,0,0,0,0,0,0,-1--1--1,,1|(222,13)|
1,61,23,28,0,0,0,0,0,0,0,-1--1--1,,1|(90,112)|
1,62,16,27,0,0,0,0,0,0,0,-1--1--1,,1|(353,158)|
1,63,1,4,1,0,0,0,0,0,0,-1--1--1,,1|(204,-81)|
1,64,20,16,0,0,0,0,0,0,0,-1--1--1,,1|(429,176)|
1,65,35,32,4,0,0,22,0,0,0,-1--1--1,,1|(476,357)|
1,66,35,34,100,0,0,22,0,0,0,-1--1--1,,1|(476,389)|
1,67,39,20,4,0,0,22,0,0,0,-1--1--1,,1|(476,232)|
1,68,39,32,100,0,0,22,0,0,0,-1--1--1,,1|(476,280)|
1,69,36,40,1,0,0,14,0,0,0,-1--1--1,,1|(559,323)|
1,70,30,35,0,0,0,0,0,0,0,-1--1--1,,1|(438,377)|
1,71,33,35,0,0,0,0,0,0,0,-1--1--1,,1|(447,399)|
1,72,32,30,0,0,0,0,0,0,0,-1--1--1,,1|(432,346)|
1,73,41,36,0,0,0,0,0,0,0,-1--1--1,,1|(505,412)|
1,74,9,8,0,0,0,0,0,0,0,-1--1--1,,1|(109,311)|
1,75,11,18,0,0,0,0,0,0,0,-1--1--1,,1|(302,306)|
1,76,10,30,1,0,0,0,0,0,0,-1--1--1,,1|(228,314)|
1,77,10,18,0,0,0,14,0,0,0,-1--1--1,,1|(235,240)|
1,78,18,7,0,0,0,0,0,0,0,-1--1--1,,1|(286,252)|
1,79,7,16,0,0,0,0,0,0,0,-1--1--1,,1|(339,186)|
1,80,17,7,0,0,0,0,0,0,0,-1--1--1,,1|(352,225)|
1,81,10,8,0,0,0,14,0,0,0,-1--1--1,,1|(169,240)|
///---\\\
:L<%^E!@
15:0,0,0,0
19:100,0
5:ACQUISITION DELAY