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a) Datos Portafolios posibles Corr 0,95 Portafolios posibles Corr 0,5 Portafolios posibles Corr 0 Portafolios posibles Corr -0,5 Portafolios posibles Corr -0,75 Portafolios posibles Corr -0,95 Activo 1 w activo 1 w activo 2 Ret Esp Desv Est Activo 1 w activo 1 w activo 2 Ret Esp Desv Est Activo 1 w activo 1 w activo 2 Ret Esp Desv Est Activo 1 w activo 1 w activo 2 Ret Esp Desv Est Activo 1 w activo 1 w activo 2 Ret Esp Desv Est Activo 1 w activo 1 w activo 2 Ret Esp Desv Est Retorno esperado 8.0% 1.50 -0.50 6.50% 9.0554% Retorno esperado 8.0% 1.50 -0.50 6.50% 15.6205% Retorno esperado 8.0% 1.50 -0.50 6.50% 20.5913% Retorno esperado 8.0% 1.50 -0.50 6.50% 24.5764% Retorno esperado 8.0% 1.50 -0.50 6.50% 26.3439% Retorno esperado 8.0% 1.50 -0.50 6.50% 27.6767% Desviación estándar 12.0% 1.45 -0.45 6.65% 9.2855% Desviación estándar 12.0% 1.45 -0.45 6.65% 15.0718% Desviación estándar 12.0% 1.45 -0.45 6.65% 19.5898% Desviación estándar 12.0% 1.45 -0.45 6.65% 23.2456% Desviación estándar 12.0% 1.45 -0.45 6.65% 24.8729% Desviación estándar 12.0% 1.45 -0.45 6.65% 26.1017% 1.40 -0.40 6.80% 9.5331% 1.40 -0.40 6.80% 14.5547% 1.40 -0.40 6.80% 18.6075% 1.40 -0.40 6.80% 21.9235% 1.40 -0.40 6.80% 23.4060% 1.40 -0.40 6.80% 24.5275% Activo 2 1.35 -0.35 6.95% 9.7969% Activo 2 1.35 -0.35 6.95% 14.0727% Activo 2 1.35 -0.35 6.95% 17.6477% Activo 2 1.35 -0.35 6.95% 20.6116% Activo 2 1.35 -0.35 6.95% 21.9440% Activo 2 1.35 -0.35 6.95% 22.9543% Retorno esperado 11.0% 1.30 -0.30 7.10% 10.0757% Retorno esperado 11.0% 1.30 -0.30 7.10% 13.6294% Retorno esperado 11.0% 1.30 -0.30 7.10% 16.7141% Retorno esperado 11.0% 1.30 -0.30 7.10% 19.3122% Retorno esperado 11.0% 1.30 -0.30 7.10% 20.4880% Retorno esperado 11.0% 1.30 -0.30 7.10% 21.3822% Desviación estándar 20.0% 1.25 -0.25 7.25% 10.3682% Desviación estándar 20.0% 1.25 -0.25 7.25% 13.2288% Desviación estándar 20.0% 1.25 -0.25 7.25% 15.8114% Desviación estándar 20.0% 1.25 -0.25 7.25% 18.0278% Desviación estándar 20.0% 1.25 -0.25 7.25% 19.0394% Desviación estándar 20.0% 1.25 -0.25 7.25% 19.8116% 1.20 -0.20 7.40% 10.6733% 1.20 -0.20 7.40% 12.8748% 1.20 -0.20 7.40% 14.9452% 1.20 -0.20 7.40% 16.7619% 1.20 -0.20 7.40% 17.6000% 1.20 -0.20 7.40% 18.2428% Correlación 1 y 2 0.95 1.15 -0.15 7.55% 10.9900% Correlación 1 y 2 0.5 1.15 -0.15 7.55% 12.5714% Correlación 1 y 2 0 1.15 -0.15 7.55% 14.1223% Correlación 1 y 2 -0.5 1.15 -0.15 7.55% 15.5190% Correlación 1 y 2 -0.75 1.15 -0.15 7.55% 16.1722% Correlación 1 y 2 -0.95 1.15 -0.15 7.55% 16.6763% 1.10 -0.10 7.70% 11.3172% 1.10 -0.10 7.70% 12.3223% 1.10 -0.10 7.70% 13.3507% 1.10 -0.10 7.70% 14.3052% 1.10 -0.10 7.70% 14.7594% 1.10 -0.10 7.70% 15.1129% 1.05 -0.05 7.85% 11.6542% 1.05 -0.05 7.85% 12.1310% 1.05 -0.05 7.85% 12.6396% 1.05 -0.05 7.85% 13.1286% 1.05 -0.05 7.85% 13.3664% 1.05 -0.05 7.85% 13.5536% 1.00 0.00 8.00% 12.0000% 1.00 0.00 8.00% 12.0000% 1.00 0.00 8.00% 12.0000% 1.00 0.00 8.00% 12.0000% 1.00 0.00 8.00% 12.0000% 1.00 0.00 8.00% 12.0000% 0.95 0.05 8.15% 12.3539% 0.95 0.05 8.15% 11.9315% 0.95 0.05 8.15% 11.4438% 0.95 0.05 8.15% 10.9343% 0.95 0.05 8.15% 10.6705% 0.95 0.05 8.15% 10.4547% Retornos Esperados Matriz Varianza Covarianza 0.90 0.10 8.30% 12.7153% Retornos Esperados Matriz Varianza Covarianza 0.90 0.10 8.30% 11.9264% Retornos Esperados Matriz Varianza Covarianza 0.90 0.10 8.30% 10.9836% Retornos Esperados Matriz Varianza Covarianza 0.90 0.10 8.30% 9.9519% Retornos Esperados Matriz Varianza Covarianza 0.90 0.10 8.30% 9.3936% Retornos Esperados Matriz Varianza Covarianza 0.90 0.10 8.30% 8.9219% Activo 1 Activo 2 0.85 0.15 8.45% 13.0836% Activo 1 Activo 2 0.85 0.15 8.45% 11.9850% Activo 1 Activo 2 0.85 0.15 8.45% 10.6320% Activo 1 Activo 2 0.85 0.15 8.45% 9.0796% Activo 1 Activo 2 0.85 0.15 8.45% 8.1939% Activo 1 Activo 2 0.85 0.15 8.45% 7.4095% Activo 1 0.08 Activo 1 0.0144 0.0228 0.80 0.20 8.60% 13.4581% Activo 1 0.08 Activo 1 0.0144 0.012 0.80 0.20 8.60% 12.1062% Activo 1 0.08 Activo 1 0.0144 0 0.80 0.20 8.60% 10.4000% Activo 1 0.08 Activo 1 0.0144 -0.012 0.80 0.20 8.60% 8.3522% Activo 1 0.08 Activo 1 0.0144 -0.018 0.80 0.20 8.60% 7.1106% Activo 1 0.08 Activo 1 0.0144 -0.0228 0.80 0.20 8.60% 5.9330% Activo 2 0.11 Activo 2 0.0228 0.04 0.75 0.25 8.75% 13.8384% Activo 2 0.11 Activo 2 0.012 0.04 0.75 0.25 8.75% 12.2882% Activo 2 0.11 Activo 2 0 0.04 0.75 0.25 8.75% 10.2956% Activo 2 0.11 Activo 2 -0.012 0.04 0.75 0.25 8.75% 7.8102% Activo 2 0.11 Activo 2 -0.018 0.04 0.75 0.25 8.75% 6.2048% Activo 2 0.11 Activo 2 -0.0228 0.04 0.75 0.25 8.75% 4.5277% 0.70 0.30 8.90% 14.2239% 0.70 0.30 8.90% 12.5284% 0.70 0.30 8.90% 10.3228% 0.70 0.30 8.90% 7.4940% 0.70 0.30 8.90% 5.5642% 0.70 0.30 8.90% 3.2863% 0.65 0.35 9.05% 14.6144% 0.65 0.35 9.05% 12.8234% 0.65 0.35 9.05% 10.4805% 0.65 0.35 9.05% 7.4324% 0.65 0.35 9.05% 5.2858% 0.65 0.35 9.05% 2.4698% 0.60 0.40 9.20% 15.0093% 0.60 0.40 9.20% 13.1697% 0.60 0.40 9.20% 10.7629% 0.60 0.40 9.20% 7.6315% 0.60 0.40 9.20% 5.4259% 0.60 0.40 9.20% 2.5298% 0.55 0.45 9.35% 15.4084% 0.55 0.45 9.35% 13.5632% 0.55 0.45 9.35% 11.1606% 0.55 0.45 9.35% 8.0722% 0.55 0.45 9.35% 5.9548% 0.55 0.45 9.35% 3.4205% 0.50 0.50 9.50% 15.8114% 0.50 0.50 9.50% 14.0000% 0.50 0.50 9.50% 11.6619% 0.50 0.50 9.50% 8.7178% 0.50 0.50 9.50% 6.7823% 0.50 0.50 9.50% 4.6904% Portafolio minima var Corr 0,95 RESPUESTA: USANDO COMO FUNCIÓN DE UTILIDAD LAS PREFERENCIAS "CUADRATICAS " DEFINIDAS SOBRE LA MEDIA Y LA VARIANZA, LLEGAMOS A QUE LA CANTIDAD DEL ACTIVO A ESTA DADA POR LA FORMULA DEL CUADRO. CON ESTA FORMULA SE CALCULO LA CANTIDAD DE A QUE DEBERÍA TENER CADA PORTAFOLIO (CUADRO CON AMARILLO DE LA IZQUIERDA), LO CUAL HACE SENTIDO AL VER LOS GRÁFICOS. 0.45 0.55 9.65% 16.2179% 0.45 0.55 9.65% 14.4762% 0.45 0.55 9.65% 12.2540% 0.45 0.55 9.65% 9.5268% 0.45 0.55 9.65% 7.8141% 0.45 0.55 9.65% 6.1074% w activo 1 w activo 2 0.40 0.60 9.80% 16.6277% 0.40 0.60 9.80% 14.9880% 0.40 0.60 9.80% 12.9244% 0.40 0.60 9.80% 10.4614% 0.40 0.60 9.80% 8.9800% 0.40 0.60 9.80% 7.5895% 1.9545454545 -0.9545454545 0.35 0.65 9.95% 17.0405% 0.35 0.65 9.95% 15.5319% 0.35 0.65 9.95% 13.6616% 0.35 0.65 9.95% 11.4909% 0.35 0.65 9.95% 10.2343% 0.35 0.65 9.95% 9.1049% En este caso el portafolio es 1,5 de w1 y -0,5 de w2, dada la restricción 0.30 0.70 10.10% 17.4562% 0.30 0.70 10.10% 16.1047% 0.30 0.70 10.10% 14.4554% 0.30 0.70 10.10% 12.5921% 0.30 0.70 10.10% 11.5482% 0.30 0.70 10.10% 10.6395% 0.25 0.75 10.25% 17.8746% 0.25 0.75 10.25% 16.7033% 0.25 0.75 10.25% 15.2971% 0.25 0.75 10.25% 13.7477% 0.25 0.75 10.25% 12.9035% 0.25 0.75 10.25% 12.1861% 0.20 0.80 10.40% 18.2954% 0.20 0.80 10.40% 17.3251% 0.20 0.80 10.40% 16.1790% 0.20 0.80 10.40% 14.9452% 0.20 0.80 10.40% 14.2885%0.20 0.80 10.40% 13.7405% Portafolio minima var Corr 0,5 0.15 0.85 10.55% 18.7184% 0.15 0.85 10.55% 17.9677% 0.15 0.85 10.55% 17.0950% 0.15 0.85 10.55% 16.1753% 0.15 0.85 10.55% 15.6952% 0.15 0.85 10.55% 15.3003% w activo 1 w activo 2 0.10 0.90 10.70% 19.1437% 0.10 0.90 10.70% 18.6290% 0.10 0.90 10.70% 18.0400% 0.10 0.90 10.70% 17.4310% 0.10 0.90 10.70% 17.1184% 0.10 0.90 10.70% 16.8642% 0.9210526316 0.0789473684 0.05 0.95 10.85% 19.5709% 0.05 0.95 10.85% 19.3070% 0.05 0.95 10.85% 19.0095% 0.05 0.95 10.85% 18.7072% 0.05 0.95 10.85% 18.5542% 0.05 0.95 10.85% 18.4310% 0.00 1.00 11.00% 20.0000% 0.00 1.00 11.00% 20.0000% 0.00 1.00 11.00% 20.0000% 0.00 1.00 11.00% 20.0000% 0.00 1.00 11.00% 20.0000% 0.00 1.00 11.00% 20.0000% Portafolio minima var Corr 0 -0.05 1.05 11.15% 20.4309% -0.05 1.05 11.15% 20.7065% -0.05 1.05 11.15% 21.0086% -0.05 1.05 11.15% 21.3063% -0.05 1.05 11.15% 21.4537% -0.05 1.05 11.15% 21.5708% w activo 1 w activo 2 -0.10 1.10 11.30% 20.8634% -0.10 1.10 11.30% 21.4252% -0.10 1.10 11.30% 22.0327% -0.10 1.10 11.30% 22.6239% -0.10 1.10 11.30% 22.9138% -0.10 1.10 11.30% 23.1430% 0.7352941176 0.2647058824 -0.15 1.15 11.45% 21.2974% -0.15 1.15 11.45% 22.1549% -0.15 1.15 11.45% 23.0703% -0.15 1.15 11.45% 23.9508% -0.15 1.15 11.45% 24.3791% -0.15 1.15 11.45% 24.7164% -0.20 1.20 11.60% 21.7329% -0.20 1.20 11.60% 22.8945% -0.20 1.20 11.60% 24.1197% -0.20 1.20 11.60% 25.2856% -0.20 1.20 11.60% 25.8488% -0.20 1.20 11.60% 26.2907% Portafolio minima var Corr -0,5 -0.25 1.25 11.75% 22.1698% -0.25 1.25 11.75% 23.6432% -0.25 1.25 11.75% 25.1794% -0.25 1.25 11.75% 26.6271% -0.25 1.25 11.75% 27.3222% -0.25 1.25 11.75% 27.8657% w activo 1 w activo 2 -0.30 1.30 11.90% 22.6080% -0.30 1.30 11.90% 24.4000% -0.30 1.30 11.90% 26.2480% -0.30 1.30 11.90% 27.9743% -0.30 1.30 11.90% 28.7986% -0.30 1.30 11.90% 29.4415% 0.6632653061 0.3367346939 -0.35 1.35 12.05% 23.0473% -0.35 1.35 12.05% 25.1643% -0.35 1.35 12.05% 27.3247% -0.35 1.35 12.05% 29.3264% -0.35 1.35 12.05% 30.2777% -0.35 1.35 12.05% 31.0177% -0.40 1.40 12.20% 23.4879% -0.40 1.40 12.20% 25.9353% -0.40 1.40 12.20% 28.4084% -0.40 1.40 12.20% 30.6829% -0.40 1.40 12.20% 31.7591% -0.40 1.40 12.20% 32.5945% Portafolio minima var Corr -0,75 -0.45 1.45 12.35% 23.9295% -0.45 1.45 12.35% 26.7125% -0.45 1.45 12.35% 29.4985% -0.45 1.45 12.35% 32.0431% -0.45 1.45 12.35% 33.2424% -0.45 1.45 12.35% 34.1716% w activo 1 w activo 2 -0.50 1.50 12.50% 24.3721% -0.50 1.50 12.50% 27.4955% -0.50 1.50 12.50% 30.5941% -0.50 1.50 12.50% 33.4066% -0.50 1.50 12.50% 34.7275% -0.50 1.50 12.50% 35.7491% 0.6415929204 0.3584070796 Portafolio minima var Corr -0,95 w activo 1 w activo 2 0.628 0.372 a) Gráficos Correlaciones mayores o iguales a 0 Portafolios posibles Corr 0,95 9.0553851381374173E-2 9.2854725243252959E-2 9.5331002302503881E-2 9.7969382972436847E-2 0.10075713374247998 0.1036822067666386 0.10673331251301069 0.10989995450408523 0.11317243480636086 0.11654183798104438 0.12 0.12353946737783841 0.12715345060201866 0.13083577492413917 0.13458083073008578 0.13838352503098048 0.14223923509355646 0.14614376483449448 0.15009330431434983 0.15408439246075517 0.15811388300841905 0.16217891354920352 0.1662768775266123 0.17040539897550205 0.17456230979223436 0.17874562931719479 0.18295354601646838 0.18718440105949 0.19143667360252584 0.195 70896760240705 0.2 0.20430859012777708 0.20863365021012312 0.21297417683841391 0.21732924331529802 0.22169799277395366 0.22607963198837711 0.23047342580002586 0.23487869209445117 0.23929479726897537 0.24372115213907886 6.5000000000000002E-2 6.6500000000000004E-2 6.8000000000000005E-2 6.9500000000000006E-2 7.1000000000000008E-2 7.2500000000000009E-2 7.400000000000001E-2 7.5500000000000012E-2 7.6999999999999999E-2 7.85E-2 0.08 8.1500000000000003E-2 8.3000000000000004E-2 8.4500000000000006E-2 8.5999999999999993E-2 8.7499999999999994E-2 8.9000000000000024E-2 9.0500000000000025E-2 9.2000000000000026E-2 9.3500000000000028E-2 9.5000000000000029E-2 9.650000000000003E-2 9.8000000000000032E-2 9.9500000000000033E-2 0.10100000000000001 0.10250000000000001 0.10400000000000001 0.1055 0.10700000000000001 0.1085 0.11 0.1115 0.11299999999999999 0.1145 0.11600000000000001 0.11750000000000001 0.11900000000000002 0.12050000000000002 0.12 2 0.1235 0.125 Portafolios posibles Corr 0,5 0.15620499351813311 0.15071828024496564 0.145547243189282 0.14072668545801825 0.13629380029920657 0.13228756555322954 0.12874781551544864 0.12571396103854177 0.1232233744059949 0.121309521472966 0.12 0.11931470990619723 0.11926441212700459 0.11984990613262908 0.12106196760337244 0.12288205727444508 0.12528367810692667 0.12823416081528363 0.13169662106523469 0.13563185466548786 0.1400000000000001 0.14476187343358066 0.14987995196156167 0.15531902652283153 0.16104657711357917 0.1670 3293088490068 0.17325126262166174 0.17967748885155313 0.18629009635512031 0.19306993551560536 0.2 0.2070652071208488 0.21425218785347327 0.22154909162531 0.22894540834006699 0.23643180835073782 0.24400000000000005 0.25164260370612929 0.25935304123915726 0.26712543869875066 0.27495454169735045 6.5000000000000002E-2 6.6500000000000004E-2 6.8000000000000005E-2 6.9500000000000006E-2 7.1000000000000008E-2 7.2500000000000009E-2 7.400000000000001E-2 7.5500000000000012E-2 7.6999999999999999E-2 7.85E-2 0.08 8.1500000000000003E-2 8.3000000000000004E-2 8.4500000000000006E-2 8.5999999999999993E-2 8.7499999999999994E-2 8.9000000000000024E-2 9.0500000000000025E-2 9.2000000000000026E-2 9.3500000000000028E-2 9.5000000000000029E-2 9.650000000000003E-2 9.8000000000000032E-2 9.9500000000000033E-2 0.10100000000000001 0.10250000000000001 0.10400000000000001 0.1055 0.10700000000000001 0.1085 0.11 0.1115 0.11299999999999999 0.1145 0.11600000000000001 0.11750000000000001 0.11900000000000002 0.12050000000000002 0.122 0.1235 0.125 Portafolios posibles Corr 0 0.20591260281974 0.19589793260777408 0.18607525359380811 0.17647662734764624 0.16714065932620945 0.15811388300841897 0.14945233353815524 0.14122322755127781 0.13350655414622911 0.12639620247459968 0.12 0.11443775600735973 0.10983624174196784 0.1063202708800161 0.104 0.10295630140987 0.10322790320451154 0.10480458005259127 0.10762899237658975 0.11160645142642973 0.11661903789690613 0.12253978945632324 0.12924395537122824 0.13661625086350471 0.14455448799674123 0.15297058540778358 0.16178998732925351 0.17095028517086483 0.18039955654047493 0.19009471323527125 0.2 0.21008569680013919 0.22032702966272658 0.23070327262524909 0.24119701490690137 0.25179356624028343 0.26248047546436676 0.27324714088165686 0.2840844944730353 0.29498474536829866 0.30594117081556715 6.5000000000000002E-2 6.6500000000000004E-2 6.8000000000000005E-2 6.9500000000000006E-2 7.1000000000000008E-2 7.2500000000000009E-2 7.400000000000001E-2 7.5500000000000012E-2 7.6999999999999999E-2 7.85E-2 0.08 8.1500000000000003E-2 8.3000000000000004E-2 8.4500000000000006E-2 8.5999999999999993E-2 8.7499999999999994E-2 8.9000000000000024E-2 9.0500000000000025E-2 9.2000000000000026E-2 9.3500000000000028E-2 9.5000000000000029E-2 9.650000000000003E-2 9.8000000000000032E-2 9.9500000000000033E-2 0.10100000000000001 0.10250000000000001 0.10400000000000001 0.1055 0.10700000000000001 0.1085 0.11 0.1115 0.11299999999999999 0.1145 0.11600000000000001 0.11750000000000001 0.11900000000000002 0.120500000000000020.122 0.1235 0.125 Desviación estandar Portafolio Rentabilidad Esperada Correlaciones menores o iguales a 0 Portafolios posibles Corr 0 0.20591260281974 0.19589793260777408 0.18607525359380811 0.17647662734764624 0.16714065932620945 0.15811388300841897 0.14945233353815524 0.14122322755127781 0.13350655414622911 0.12639620247459968 0.12 0.11443775600735973 0.10983624174196784 0.1063202708800161 0.104 0.10295630140987 0.10322790320451154 0.10480458005259127 0.10762899237658975 0.11160645142642973 0.11661903789690613 0.12253978945632324 0.12924395537122824 0.13661625086350471 0.14455448799674123 0.15297058540778358 0.16178998732925351 0.17095028517086483 0.18039 955654047493 0.19009471323527125 0.2 0.21008569680013919 0.22032702966272658 0.23070327262524909 0.24119701490690137 0.25179356624028343 0.26248047546436676 0.27324714088165686 0.2840844944730353 0.29498474536829866 0.30594117081556715 6.5000000000000002E-2 6.6500000000000004E-2 6.8000000000000005E-2 6.9500000000000006E-2 7.1000000000000008E-2 7.2500000000000009E-2 7.400000000000001E-2 7.5500000000000012E-2 7.6999999999999999E-2 7.85E-2 0.08 8.1500000000000003E-2 8.3000000000000004E-2 8.4500000000000006E-2 8.5999999999999993E-2 8.7499999999999994E-2 8.9000000000000024E-2 9.0500000000000025E-2 9.2000000000000026E-2 9.3500000000000028E-2 9.5000000000000029E-2 9.650000000000003E-2 9.8000000000000032E-2 9.9500000000000033E-2 0.10100000000000001 0.10250000000000001 0.10400000000000001 0.1055 0.10700000000000001 0.1085 0.11 0.1115 0.11299999999999999 0.1145 0.1160 0000000000001 0.11750000000000001 0.11900000000000002 0.12050000000000002 0.122 0.1235 0.125 Portafolios posibles Corr -0,5 0.24576411454889016 0.23245644753372618 0.21923503369671551 0.20611647192788843 0.19312172327317298 0.18027756377319945 0.1676186147180557 0.15519020587653073 0.14305243793798134 0.13128594745821048 0.12 0.10934349546269316 9.9518842436997823E-2 9.0796475702529328E-2 8.3522452071284406E-2 7.8102496759066553E-2 7.493997598078074E-2 7.432361670424821E-2 7.6315136113355733E-2 8.0721744282442373E-2 8.7177978870813633E-2 9.52680429 10516604E-2 0.10461357464497636 0.11490865937778603 0.12592060990957757 0.13747727084867523 0.14945233353815526 0.161752897964766 0.17431006855600745 0.1870721785835617 0.2 0.21306337085477647 0.22623881187806835 0.23950782868207043 0.25285569006846575 0.26627053911388698 0.27974273895849378 0.29326438583639852 0.30682894257224169 0.32043095980257591 0.33406586176980135 6.5000000000000002E-2 6.6500000000000004E-2 6.8000000000000005E-2 6.9500000000000006E-2 7.1000000000000008E-2 7.2500000000000009E-2 7.400000000000001E-2 7.5500000000000012E-2 7.6999999999999999E-2 7.85E-2 0.08 8.1500000000000003E-2 8.3000000000000004E-2 8.4500000000000006E-2 8.5999999999999993E-2 8.7499999999999994E-2 8.9000000000000024E-2 9.05000 00000000025E-2 9.2000000000000026E-2 9.3500000000000028E-2 9.5000000000000029E-2 9.650000000000003E-2 9.8000000000000032E-2 9.9500000000000033E-2 0.10100000000000001 0.10250000000000001 0.10400000000000001 0.1055 0.10700000000000001 0.1085 0.11 0.1115 0.11299999999999999 0.1145 0.11600000000000001 0.11750000000000001 0.11900000000000002 0.12050000000000002 0.122 0.1235 0.125 Portafolios posibles Corr -0,75 0.26343879744638982 0.24872876793808951 0.23405982141324466 0.21944019686465835 0.20488045294756649 0.19039432764659769 0.17599999999999999 0.16172198366332263 0.14759403781996078 0.1336637572418192 8 0.12 0.10670520137275406 9.3936148526539032E-2 8.193900170248597E-2 7.1105555338524723E-2 6.2048368229954284E-2 5.5641710972974122E-2 5.2858301145610041E-2 5.425863986500222E-2 5.9548299723837753E-2 6.782329983125289E-2 7.814089838234542E-2 8.9799777282574822E-2 0.10234256201600611 0.11548160026601641 0.1290348790056394 0.14288456879593403 0.15695222202950807 0.17118411141224529 0.18554244797350283 0.2 0.21453671014537351 0.22913751329714652 0.24379089400549811 0.2584879107424562 0.27322152184628501 0.28798611077619701 0.30277714576896325 0.31759093186046733 0.33242442750195117 0.34727510708370679 6.5000000000000002E-2 6.6500000000000004E-2 6.8000000000000005E-2 6.9500000000000006E-2 7.1000000000000008E-2 7.2500000000000009E-2 7.400000000000001E-2 7.5500000000000012E-2 7.6999999999999999E-2 7.85E-2 0.08 8.1500000000000003E-2 8.3000000000000004E-2 8.4500000000000006E-2 8.5999999999999993E-2 8.7499999999999994E-2 8.9000000000000024E-2 9.0500000000000025E-2 9.2000000000000026E-2 9.3500000000000028E-2 9.5000000000000029E-2 9.650000000000003E-2 9.8000000000000032E-2 9.9500000000000033E-2 0.10100000000000001 0.10250000000000001 0.10400000000000001 0.1055 0.10700000000000001 0.1085 0.11 0.1115 0.11299999999999999 0.1145 0.11600000000000001 0.11750000000000001 0.11900000000000002 0.12050000000000002 0.122 0.1235 0.125 Portafolios posibles Corr -0,95 0.27676705006196095 0.26101724080987448 0.24527535546809423 0.22954302428956541 0.21382235617446557 0.1981161275615895 0.18242806801586206 0.16676330531624753 0.15112908389850052 0.13553597308463905 0.12 0.10454664030948099 8.9218832092781863E-2 7.4094534211370799E-2 5.9329587896765318E-2 4.5276925690687087E-2 3.2863353450309739E-2 2.4698178070456874E-2 2.5298221281347167E-2 3.4205262752974364E-2 4.6904157598234596E-2 6.1073725938410164E-2 7.5894663844041407E-2 9.1049437120720625E-2 0.1063954886261631 0.12186057606953943 0.13740451229854136 0.15300326793895613 0.16864163187066239 0.18430952227163958 0.2 0.2157081361469706 0.23143033509028152 0.24716391322359338 0.26290682760247974 0.2786574958618 5551 0.2944146735473625 0.31017736861350803 0.32594478059941384 0.34171625656383403 0.35749125863438957 6.5000000000000002E-2 6.6500000000000004E-2 6.8000000000000005E-2 6.9500000000000006E-2 7.1000000000000008E-2 7.2500000000000009E-2 7.400000000000001E-2 7.5500000000000012E-2 7.6999999999999999E-2 7.85E-2 0.08 8.1500000000000003E-2 8.3000000000000004E-2 8.4500000000000006E-2 8.5999999999999993E-2 8.7499999999999994E-2 8.9000000000000024E-2 9.0500000000000025E-2 9.2000000000000026E-2 9.3500000000000028E-2 9.5000000000000029E-2 9.650000000000003E-2 9.8000000000000032E-2 9.9500000000000033E-2 0.10100000000000001 0.10250000000000001 0.10400000000000001 0.1055 0.10700000000000001 0.1085 0.11 0.1115 0.11299999999999999 0.1145 0.11600000000000001 0.11750000000000001 0.11900000000000002 0.12050000000000002 0.122 0.1235 0.125 Desviación estandar Portafolio Rentabilidad Esperada b) Activo C Portafolio minima var Corr 0 Retorno esperado 7.0% w activo A w activo B Retorno esp. Desv. Est. Desviación estándar 10.0% 0.7352941176 0.2647058824 0.0879411765 0.1028991511 Correlación A -0.6 Correlación B 0.7 Portafolio equal Weight w activo A w activo B Retorno esp. Desv. Est. 0.5 0.5 0.095 0.1166190379 Activo A Retorno esperado 8.0% Desviación estándar 12.0% Activo C Retorno esperado 11.0% Desviación estándar 20.0% Correlación A y B 0 Para calcular el riesgo relativo es necesario escribir la covariaza del activo C con el portafolio, en terminos de A,B y C. Basicamente usaremos la siguiente formula: Además sabemos que la Covarianza se puede escribir como la multiplicación de las varianzas por la correlación. Riesgo relativo caso portafolio de mínima varianza -0.15 Riesgo relativo caso portafolio equal weight 0.25 c) Activo C Matriz de covarianzas Retorno esperado 7.0% A B C Desviación estándar 10.0% A 0.0144 0 -0.0072 Correlación A -0.6 B 0 0.04 0.014 Correlación B 0.7 C -0.0072 0.014 0.01 Activo A Para calcular el portafolio de mínima varianza utilizaremos la siguiente formula, y luego resolveremos con solver Retorno esperado 8.0% Desviación estándar 12.0% Activo B Retorno esperado 11.0% Desviación estándar 20.0% Correlación 1 y 2 0 Restricción de retorno Portafolio de mínima varianza 0.064667046 >= 5% Wa Wb Wc 0.463858849 -0.2492885633 0.7854297143 Restricción ponderadores 1.00 = 1 Ra Rb Rc 8.0% 11.0% 7.0% Desviación Estandar 0.0320073981 c) Gráficos Para graficar, buscaremospuntos con solver. Supondremos que la restricción de ventas cortas solo se utiliza para la letra a) Activo C Matriz de covarianzas Retorno esperado 7.0% A B C Desviación estándar 10.0% A 0.0144 0 -0.0072 Correlación A -0.6 B 0 0.04 0.014 Correlación B 0.7 C -0.0072 0.014 0.01 Activo A Para calcular el portafolio de mínima varianza utilizaremos la siguiente formula, y luego resolveremos con solver Retorno esperado 8.0% Desviación estándar 12.0% Activo B Retorno esperado 11.0% Desviación estándar 20.0% Correlación 1 y 2 0 Restricción de retorno Portafolio de mínima varianza 0.0879412643 >= 0.05 Wa Wb Wc 0.7352948504 0.2647061479 0 1.00 = 1 Ra Rb Rc 8.0% 11.0% 7.0% Desviación Estandar 0.1028992538 Portafolio de mínima varianza Wa Wb Wc Desviación Estandar E(Rp) 0.3972780235 -1.3493195059 1.9520414824 0.1681865458 0.02 0.4121840897 -1.1030460224 1.6908619327 0.1320843423 0.03 0.427090091 -0.8567725224 1.4296824312 0.0966369021 0.04 0.4419960935 -0.6104990272 1.1685029342 0.0629600378 0.05 0.453920933 -0.4134802341 0.9595593011 0.0403960947 0.058 0.463858849 -0.2492885633 0.7854297143 0.0320073981 0.064667046 0.4718081706 -0.1179520433 0.6461438714 0.0375911076 0.07 0.4792612009 0.0051847271 0.5155540693 0.0498338163 0.075 0.4941672153 0.2514581428 0.2543746544 0.0816926343 0.085 0.5016202384 0.3745949135 0.1237848623 0.0989628621 0.09 0.5090731992 0.4977316811 -0.0068048604 0.1166054195 0.095 0.5165262218 0.6208684248 -0.1373946316 0.1344738408 0.1 0.5239792683 0.7440051632 -0.2679844156 0.1524887486 0.105 0.5299416738 0.8425145536 -0.3724562068 0.166974298 0.109 Portafolio de mínima varianza con A=0 Wa Wb Wc Desviación Estandar E(Rp) 0 -1.25 2.25 0.1854049622 0.02 0 -0.625001375 1.625001375 0.1165923531 0.045 0 -0.375 1.375 0.1004676565 0.055 0 -0.1249767631 1.1249777631 0.0966634735 0.065 0 0.0249999785 0.9750000338 0.1010630994 0.071 0 0.0749999777 0.925000035 0.1035555407 0.073 0 0.1249999746 0.8750000399 0.1065070418 0.075 0 0.2499999769 0.7500000364 0.1156503344 0.08 0 0.3749999816 0.6250000289 0.1268611437 0.085 0 0.5 0.5 0.1396423996 0.09 0 0.625 0.375 0.1536025716 0.095 0 0.7499983734 0.2500025561 0.1684486791 0.1 0 0.875 0.125 0.1839667089 0.105 Portafolio de mínima varianza con B=0 Wa Wb Wc Desviación Estandar E(Rp) -0.7 0 1.7 0.2304170133 0.063 -0.3 0 1.3 0.1543113735 0.067 0.4432994124 0 0.5567015876 0.0487366647 0.071 0.6999930716 0 0.3000079182 0.0702271881 0.077 0.8999930768 0 0.1000079122 0.2137770631 0.085 Portafolio de mínima varianza con C=0 Wa Wb Wc Desviación Estandar E(Rp) 1.4 -0.4 0 0.1860752536 0.068 1.1666666667 -0.1666666667 0 0.1439135543 0.075 1.0000036425 -0.0000026425 0 0.12 0.08 0.7352941176 0.2647058824 0 0.1028991511 0.0879412643 0.4999999378 0.5000000452 0 0.1166190418 0.095 0.1666665755 0.8333333996 0 0.1678623894 0.105 Frontera de minima varianza Mínima varianza 3 activos 0.1681865458207088 0.13208434234317137 9.6636902128908117E-2 6.2960037806463892E-2 4.0396094711820971E-2 3.2007398120336129E-2 3.7591107628185669E-2 4.9833816252609256E-2 8.1692634290133251E-2 9.896286208844858E-2 0.11660541952740988 0.13447384080888414 0.15248874857852726 0.16697429799325217 0.02 0.03 0.04 0.05 5.8000000000000003E-2 6.4667045956546293E-2 7.0000000000000007E-2 7.4999999999999997E-2 8.5000000000000006E-2 0.09 9.5000000000000001E-2 0.1 0.105 0.109 A=0 0.18540496217741806 0.11659235314777457 0.10046765648707515 9.6663473475750147E-2 0.10106309936130996 0.10355554070405652 0.10650704184190733 0.11565033441918181 0.12686114374159529 0.13964239956673716 0.15360257159305568 0.16844867905637584 0.18396670894485212 0.02 4.4999999999999998E-2 5.5E-2 6.5000000000000002E-2 7.0999999999999994E-2 7.2999999999999995E-2 7.4999999999999997E-2 0.08 8.5000000000000006E-2 0.09 9.5000000000000001E-2 0.1 0.105 B= 0 0.23041701326018951 0.15431137352739804 4.8736664663029637E-2 7.022718811061332E-2 0.21377706309778 6.3E-2 6.7000000000000004E-2 7.0999999999999994E-2 7.6999999999999999E-2 8.5000000000000006E-2 C=0 0.18607525359366064 0.14391355429947814 0.12 0.102899151 085505 0.11661904181165808 0.1678623893518402 6.8000000000000005E-2 7.4999999999999997E-2 0.08 8.7941264296878013E-2 9.5000000000000001E-2 0.105 Desviación Estándar E(Rp) d) Activo C Matriz de covarianzas Retorno esperado 7.0% A B C Desviación estándar 10.0% A 0.0144 0 -0.0072 Correlación A -0.6 B 0 0.04 0.014 Correlación B 0.7 C -0.0072 0.014 0.01 Activo A Para calcular el portafolio de mínima varianza utilizaremos la siguiente formula, y luego resolveremos con solver Retorno esperado 8.0% Desviación estándar 12.0% Activo B Retorno esperado 11.0% Desviación estándar 20.0% Correlación 1 y 2 0 Restricción de retorno Portafolio de mínima varianza 0.1100000229 >= 11% Wa Wb Wc 0.5314325821 0.8671409738 -0.398572726 1.00 = 1 Ra Rb Rc 8.0% 11.0% 7.0% Desviación Estandar 0.1706036398 Usando solver para el caso de a y b, llegamos a las siguientes respuestas: Desviación portafolio eficiente con retorno igual al del activo A (8%): 0.0650917884 Por lo tanto la diferencia seria de: 0.0549082116 Desviación portafolio eficiente con retorno igual al del activo B (11%): 0.1706036398 Por lo tanto la diferencia seria de: 0.0293963602 e) Activo D Portafolio minima var Corr 0 Retorno esperado 5.0% w activo A w activo B Retorno esp. Desv. Est. Desviación estándar 10.0% 0.7352941176 0.2647058824 0.0879411765 0.1028991511 Correlación A 0.5 Correlación B -0.5 Portafolio equal Weight w activo A w activo B Retorno esp. Desv. Est. 0.5 0.5 0.095 0.1166190379 Activo A Retorno esperado 8.0% Desviación estándar 12.0% Activo C Retorno esperado 11.0% Desviación estándar 20.0% Correlación A y B 0 Para calcular el riesgo relativo es necesario escribir la covariaza del activo D con el portafolio, en terminos de A,B y D. Basicamente usaremos la siguiente formula: Además sabemos que la Covarianza se puede escribir como la multiplicación de las varianzas por la correlación. Riesgo relativo caso portafolio de mínima varianza 0.1666666667 Riesgo relativo caso portafolio equal weight -0.1470588235 f) Activo C Matriz de covarianzas Retorno esperado 7.0% A B C D Desviación estándar 10.0% A 0.0144 0 -0.0072 0.006 Correlación A -0.6 B 0 0.04 0.014 -0.01 Correlación B 0.7 C -0.0072 0.014 0.01 -0.004 D 0.006 -0.01 -0.004 0.01 Activo A Para calcular el portafolio de mínima varianza utilizaremos la siguiente formula, y luego resolveremos con solver Retorno esperado 8.0% Desviación estándar 12.0% Activo B Retorno esperado 11.0% Desviación estándar 20.0% Correlación A y B 0 Restricción de retorno Activo D 0.0673625351 >= 5% Retorno esperado 5.0% Desviación estándar 10.0% Correlación A 0.5 1.00 = 1 Correlación B -0.5 Correlacion C -0.4 Desviación Estandar 0.0204788892 Portafolio de mínima varianza Wa Wb Wc Wd 0.8713886538 -0.5563839902 1.2301957453 -0.545200409 Ra Rb Rc Rd 8.0% 11.0% 7.0% 5.0% f) Gráficos Activo C Matriz de covarianzas Retorno esperado 7.0% A B C D Desviación estándar 10.0% A 0.0144 0 -0.0072 0.006 Correlación A -0.6 B 0 0.04 0.014 -0.01 Correlación B 0.7 C -0.0072 0.014 0.01 -0.004 D 0.006 -0.01 -0.004 0.01 Activo A Para calcular el portafolio de mínima varianza utilizaremos la siguiente formula, y luego resolveremos con solver Retorno esperado 8.0% Desviación estándar 12.0% Activo B Retorno esperado 11.0% Desviación estándar 20.0% Correlación A y B 0 Restricción de retorno Activo D 0.0199999974 >= 2% Retorno esperado 5.0% Desviación estándar 10.0% Correlación A 0.5 1.00 = 1 Correlación B -0.5 Correlacion C -0.4 Desviación Estandar 0.1635570402 Portafolio de mínima varianza Wa Wb Wc Wd -0.1985558246 -0.7978341195 1.1913359655 0.8050539786 Ra Rb Rc Rd 8.0% 11.0% 7.0%5.0% Portafolio de mínima varianza A,B,C y D Wa Wb Wc Wd Desviación Estandar E(Rp) -0.1985558246 -0.7978341195 1.1913359655 0.8050539786 0.1635570402 0.02 0.4791599369 -0.6448967108 1.2159502268 -0.0502134529 0.06291257 0.05 0.5921125164 -0.6194071211 1.2200525805 -0.1927579759 0.0470465655 0.055 0.7050652275 -0.5939176287 1.2241550456 -0.3353026444 0.0324912786 0.06 0.8713886538 -0.5563839902 1.2301957453 -0.545200409 0.0204788892 0.0673625351 0.9309703556 -0.5429383951 1.2323596841 -0.6203916447 0.0223839075 0.07 1.0439229192 -0.5174488028 1.2364620299 -0.7629361463 0.0332278717 0.075 1.1568755041 -0.4919592138 1.2405643855 -0.9054806759 0.0478963436 0.08 1.2698281494 -0.4664696649 1.2446667787 -1.0480252632 0.063803951 0.085 1.8345911662 -0.3390217827 1.2651786217 -1.7607480052 0.1475096871 0.11 Frontera de minima varianza A, B y C 0.1681865458207088 0.13208434234317137 9.6636902128908117E-2 6.2960037806463892E-2 4.0396094711820971E-2 3.2007398120336129E-2 3.7591107628185669E-2 4.9833816252609256E-2 8.1692634290133251E-2 9.896286208844858E-2 0.11660541952740988 0.13447384080888414 0.15248874857852726 0.16697429799325217 0.02 0.03 0.04 0.05 5.8000000000000003E-2 6.4667045956546293E-2 7.0000000000000007E-2 7.4999999999999997E-2 8.5000000000000006E-2 0.09 9.5000000000000001E-2 0.1 0.105 0.109 A y B 0.18607525359366064 0.14391355429947814 0.12 0.102899151085505 0.11661904181165808 0.1678623893518402 6.8000000000000005E-2 7.4999999999999997E-2 0.08 8.7941264296878013E-2 9.5000000000000001E-2 0.105 A,B,C y D 0.16355704024660897 6.2912570047510025E-2 4.7046565517502435E-2 3.2491278570195598E-2 2.0478889182363756E-2 2.238390746873177E-2 3. 3227871695035743E-2 4.7896343629151558E-2 6.380395101266402E-2 0.14750968705980796 0.02 0.05 5.5E-2 0.06 6.7362535110912738E-2 7.0000000000000007E-2 7.4999999999999997E-2 0.08 8.5000000000000006E-2 0.11 A=0 0.18540496217741806 0.11659235314777457 0.10046765648707515 9.6663473475750147E-2 0.10106309936130996 0.10355554070405652 0.10650704184190733 0.11565033441918181 0.12686114374159529 0.13964239956673716 0.15360257159305568 0.16844867905637584 0.18396670894485212 0.02 4.4999999999999998E-2 5.5E-2 6.5000000000000002E-2 7.0999999999999994E-2 7.2999999999999995E-2 7.4999999999999997E-2 0.08 8.5000000000000006E-2 0.09 9.5000000000000001E-2 0.1 0.105 B=0 0.23041701326018951 0.15431137352739804 4.8736664663029637E-2 7.022718 811061332E-2 0.21377706309778 6.3E-2 6.7000000000000004E-2 7.0999999999999994E-2 7.6999999999999999E-2 8.5000000000000006E-2 Desviación Estándar E(Rp) g) Activo C Matriz de covarianzas Retorno esperado 7.0% A B C D Desviación estándar 10.0% A 0.0144 0 -0.0072 0.006 Correlación A -0.6 B 0 0.04 0.014 -0.01 Correlación B 0.7 C -0.0072 0.014 0.01 -0.004 D 0.006 -0.01 -0.004 0.01 Activo A Para calcular el portafolio de mínima varianza utilizaremos la siguiente formula, y luego resolveremos con solver Retorno esperado 8.0% Desviación estándar 12.0% Activo B Retorno esperado 11.0% Desviación estándar 20.0% Correlación A y B 0 Restricción de retorno Activo D 0.110000001 = 11% Retorno esperado 5.0% Desviación estándar 10.0% Correlación A 0.5 1.00 = 1 Correlación B -0.5 Correlacion C -0.4 Desviación Estandar 0.1475096888 Portafolio de mínima varianza Wa Wb Wc Wd 1.8345913505 -0.3390219141 1.2651787651 -1.7607482014 Ra Rb Rc Rd 8.0% 11.0% 7.0% 5.0% Usando solver para el caso de a y b, llegamos a las siguientes respuestas: Desviación portafolio eficiente con retorno igual al del activo A (8%): 0.0478963439 Por lo tanto la diferencia seria de: 0.0721036561 Desviación portafolio eficiente con retorno igual al del activo B (11%): 0.1475096888 Por lo tanto la diferencia seria de: 0.0524903112
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