决策理论与方法概述( )课件.pptx

1、投票人投票人ABCDEFGHIJK偏偏好好次次序序1aaabbbbcccd2cccaaaaaaaa3dddccccdddc4bbbddddbbbb简单多数获胜机制简单多数获胜机制投票人投票人ABCDEFGHIJK偏偏好好次次序序1bbbbbbaaaaa2aaaaaacccdd3cccddddddcc4dddcccbbbbb绝对多数获胜机制绝对多数获胜机制投票人投票人ABCDEFGHIJK偏偏好好次次序序1bbbccccddaa2aaaaaaaaabd3dcdbbbdcbdc4cdcdddbbccb绝对多数获胜机制：多轮决胜绝对多数获胜机制：多轮决胜()min()Cy UxFxN xy()()(

2、)Biiy UxFxnkN xyniaaaaaaaAmpmppijli,2,11221111niijljlpmjlambbB1)(，5,.1 ),()(1,1nHASnn5,.,1 ),()(2,2nHASnn,01,in01i211ii2 ,1i ),1,0(151,niniH5),.,1,(1,11,nmnn511,11,1nnHm1,1,1,HHHmmm511,11,)1(nnHm11,1Hm512,22,1nnHm22,1Hm512,22,)1(nnHm2,2,2,HHHmmm5).,1,(2,22,nmnn151512,1,1ttnnntmmk5).,1,()(2,1,2,1,2,1

3、,nmmmmmmkmHnnHnnn)(2,1,2,1,2,1,HHHHHHHmmmmmmkm)(2,1,HHHmmkm5 .,1 ),(nHSnn5).,1,(,1)(,)(,nmmLIHLInn)(,)(,1LIHLIHHmmiiiHHuHuu5211min)()()()(5541maxHiiiHuHuu2maxminuuuaverage0.11E5.02E5.02G5.010.01G5.025.00.15.0111EEm5.05.01111Hm0)11(5.0)(11111EGHm0.00.05.0111GGm5.0111HHHmmm25.05.05.0222EEm5.05.01122Hm

4、0)11(5.0)(12222EGHm25.05.05.0222GGm5.0222HHHmmm1429.0125.01429.1 )25.05.05.0025.00()(212121kmmmmmmkmGHHGGGG1429.1125.01 )25.05.0()25.00.0(1 )()(11112121GEEGmmmmk57145.05.01429.1 )25.05.05.05.025.05.0()(212121kmmmmmmkmEHHEEEE1429.1k0 )5.0005.000()(2,1,2,1,2,1,kmmmmmmkmHHHHHHH285725.0 )5.05.0(1429.1 )(2,1,HHHmmkm2.0285725.011429.01HGGmm8.0285725.0157145.01HEEmm0285725.0101HHHmm谢谢大家！谢谢大家！