系统动力学第13章模型测试

1、inventorylaborproductionsalesnet hiringtime to hireproductivity oflaborsexogenous salesdesiredinventoryadjustment timeinventory gapdesired laborslabor gapexpected salesinventorycoverage timeadjustment forinventorydesiredproduction系统行为行为特性设想的原因外在的内在的有/无说明有/无说明扰乱无方向变动下降有销售速率下降无指数增长无寻的行为有无有负反馈振荡有无有含有延迟

2、的大负反馈环重点转移无inventorylabor+production+net hiringinventory gapdesired laborslabor gap+adjustment forinventorydesiredproduction+-+-c1c2inventory cut c125,000 widget25,000 widget17,500 widget17,500 widget10,000 widget10,000 widget222222222222211111111111012345time (year)cut c1widget1111111111111original

3、widget222222222222inventory integration20,000 widget20,000 widget15,000 widget15,000 widget10,000 widget10,000 widget222222222222211111111111111012345time (year)integrationwidget111111111111originalwidget222222222222inventory extram-140,000 widget40,000 widget17,500 widget17,500 widget-5,000 widget-

4、5,000 widget222222222222211111111111111012345time (year)extremewidget1111111111111originalwidget222222222222labor extram-160 labor60 labor10 labor10 labor-40 labor-40 labor22222222222222111111111111111012345time (year)extremelabor1111111111111originallabor2222222222222labor extram-160labor60labor10l

5、abor10labor-40labor-40labor22222222222222111111111111111012345time (year)extremelabor1111111111111originallabor2222222222222inventory extram-260,000widget60,000widget60,000widget27,500widget27,500widget27,500widget-5,000widget-5,000widget-5,000widget3333333333333222222222222211111111111111012345time (year)extremewidget1111111111111originalwidget222222222222revisedewidget333333333333labor extram-260labor60labor60labor10labor10labor10labor-40labor-40labor-40labor3333333333333322222222222222111111111111111012345time (year)extremelabor1111111111111originallabor2222222222222revisedlab