{"id":30271,"date":"2023-12-07T09:07:06","date_gmt":"2023-12-07T09:07:06","guid":{"rendered":"https:\/\/masterskills.org\/blog\/thien-kien-xac-nhan-confirmation-bias-trong-chung-khoan-la-gi-dac-diem-va-cach-vuot-qua.html"},"modified":"2023-12-23T06:12:32","modified_gmt":"2023-12-22T23:12:32","slug":"thien-kien-xac-nhan-confirmation-bias-trong-chung-khoan-la-gi-dac-diem-va-cach-vuot-qua","status":"publish","type":"post","link":"https:\/\/masterskills.org\/blog\/thien-kien-xac-nhan-confirmation-bias-trong-chung-khoan-la-gi-dac-diem-va-cach-vuot-qua.html","title":{"rendered":"Thi\u00ean ki\u1ebfn x\u00e1c nh\u1eadn (Confirmation Bias) trong ch\u1ee9ng kho\u00e1n l\u00e0 g\u00ec? \u0110\u1eb7c \u0111i\u1ec3m v\u00e0 c\u00e1ch v\u01b0\u1ee3t qua"},"content":{"rendered":"
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<\/div>
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(\u1ea2nh minh h\u1ecda: Verywellmind)<\/p>\n<\/figcaption><\/figure>\n

Thi\u00ean ki\u1ebfn x\u00e1c nh\u1eadn<\/font><\/h2>\n

Kh\u00e1i ni\u1ec7m<\/b><\/p>\n

Thi\u00ean ki\u1ebfn x\u00e1c nh\u1eadn<\/b> trong ti\u1ebfng Anh l\u00e0 Confirmation Bias.<\/b><\/p>\n

Thi\u00ean ki\u1ebfn x\u00e1c nh\u1eadn<\/b> l\u00e0 m\u1ed9t thu\u1eadt ng\u1eef t\u1eeb l\u0129nh v\u1ef1c t\u00e2m l\u00ed h\u1ecdc nh\u1eadn th\u1ee9c m\u00f4 t\u1ea3 c\u00e1ch m\u1ecdi ng\u01b0\u1eddi \u1ee7ng h\u1ed9 m\u1ed9t c\u00e1ch t\u1ef1 nhi\u00ean nh\u1eefng th\u00f4ng tin x\u00e1c nh\u1eadn ni\u1ec1m tin tr\u01b0\u1edbc \u0111\u00e2y c\u1ee7a h\u1ecd.<\/p>\n

C\u00e1c chuy\u00ean gia trong l\u0129nh v\u1ef1c t\u00e0i ch\u00ednh h\u00e0nh vi x\u00e1c \u0111\u1ecbnh r\u1eb1ng nguy\u00ean t\u1eafc c\u01a1 b\u1ea3n cho thi\u00ean ki\u00ean x\u00e1c nh\u1eadn c\u00f3 th\u1ec3 \u00e1p d\u1ee5ng cho c\u00e1c nh\u00e0 \u0111\u1ea7u t\u01b0. <\/p>\n

C\u00e1c nh\u00e0 \u0111\u1ea7u t\u01b0 s\u1ebd t\u00ecm ki\u1ebfm th\u00f4ng tin x\u00e1c nh\u1eadn \u00fd ki\u1ebfn hi\u1ec7n c\u00f3 v\u00e0 b\u1ecf qua th\u00f4ng tin tr\u00e1i ng\u01b0\u1ee3c v\u1edbi \u00fd ki\u1ebfn c\u1ee7a m\u00ecnh. Do \u0111\u00f3 c\u00e1c nh\u00e0 \u0111\u1ea7u t\u01b0 c\u00f3 th\u1ec3 l\u00e0m l\u1ec7ch gi\u00e1 tr\u1ecb c\u00e1c quy\u1ebft \u0111\u1ecbnh \u0111\u1ea7u t\u01b0 d\u1ef1a tr\u00ean xu h\u01b0\u1edbng nh\u1eadn th\u1ee9c c\u1ee7a ch\u00ednh h\u1ecd. <\/p>\n

\u0110\u1eb7c \u0111i\u1ec3m c\u1ee7a Thi\u00ean ki\u1ebfn x\u00e1c nh\u1eadn<\/font><\/b><\/h3>\n

Thi\u00ean ki\u1ebfn x\u00e1c nh\u1eadn<\/b> c\u00f3 th\u1ec3 t\u1ea1o ra v\u1ea5n \u0111\u1ec1 cho c\u00e1c nh\u00e0 \u0111\u1ea7u t\u01b0. <\/p>\n

Khi nghi\u00ean c\u1ee9u m\u1ed9t kho\u1ea3n \u0111\u1ea7u t\u01b0, ai \u0111\u00f3 c\u00f3 th\u1ec3 v\u00f4 t\u00ecnh t\u00ecm ki\u1ebfm th\u00f4ng tin h\u1ed7 tr\u1ee3 cho ni\u1ec1m tin c\u1ee7a m\u00ecnh v\u1ec1 kho\u1ea3n \u0111\u1ea7u t\u01b0 \u0111\u00f3 nh\u01b0ng l\u1ea1i kh\u00f4ng th\u1ea5y th\u00f4ng tin th\u1ec3 hi\u1ec7n c\u00e1c th\u00f4ng tin tr\u00e1i ng\u01b0\u1ee3c kh\u00e1c nhau. <\/p>\n

Do \u0111\u00f3, thi\u00ean ki\u1ebfn x\u00e1c nh\u1eadn c\u00f3 th\u1ec3 khi\u1ebfn c\u00e1c nh\u00e0 \u0111\u1ea7u t\u01b0 \u0111\u01b0a ra quy\u1ebft \u0111\u1ecbnh sai l\u1ea7m, cho d\u00f9 \u0111\u00f3 l\u00e0 quy\u1ebft \u0111\u1ecbnh l\u1ef1a ch\u1ecdn \u0111\u1ea7u t\u01b0 hay th\u1eddi \u0111i\u1ec3m mua b\u00e1n c\u1ed5 phi\u1ebfu.<\/p>\n

Thi\u00ean ki\u1ebfn x\u00e1c nh\u1eadn \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn nh\u1eadn th\u1ee9c v\u00e0 vi\u1ec7c ra quy\u1ebft \u0111\u1ecbnh trong t\u1ea5t c\u1ea3 c\u00e1c kh\u00eda c\u1ea1nh c\u1ee7a cu\u1ed9c s\u1ed1ng v\u00e0 c\u00f3 th\u1ec3 khi\u1ebfn c\u00e1c nh\u00e0 \u0111\u1ea7u t\u01b0 \u0111\u01b0a ra nh\u1eefng l\u1ef1a ch\u1ecdn kh\u00f4ng t\u1ed1i \u01b0u. <\/p>\n

T\u1ec9m hi\u1ec3u \u00fd ki\u1ebfn kh\u00e1c nhau xung quanh c\u00f3 th\u1ec3 gi\u00fap kh\u1eafc ph\u1ee5c thi\u00ean ki\u1ebfn x\u00e1c nh\u1eadn v\u00e0 h\u1ed7 tr\u1ee3 nh\u00e0 \u0111\u1ea7u t\u01b0 \u0111\u01b0a ra quy\u1ebft \u0111\u1ecbnh s\u00e1ng su\u1ed1t h\u01a1n.<\/p>\n

Hi\u1ec7n t\u01b0\u1ee3ng n\u00e0y l\u00e0 ngu\u1ed3n g\u1ed1c c\u1ee7a s\u1ef1 t\u1ef1 tin th\u00e1i qu\u00e1 c\u1ee7a nh\u00e0 \u0111\u1ea7u t\u01b0 v\u00e0 gi\u00fap gi\u1ea3i th\u00edch l\u00ed do t\u1ea1i sao gi\u00e1 t\u0103ng v\u1eabn duy tr\u00ec xu h\u01b0\u1edbng t\u0103ng, v\u00e0 gi\u00e1 gi\u1ea3m v\u1eabn duy tr\u00ec xu h\u01b0\u1edbng gi\u1ea3m b\u1ea5t k\u1ec3 \u0111i\u1ec1u g\u00ec \u0111ang x\u1ea3y ra tr\u00ean th\u1ecb tr\u01b0\u1eddng. <\/p>\n

Thi\u00ean ki\u1ebfn x\u00e1c nh\u1eadn gi\u00fap gi\u1ea3i th\u00edch l\u00ed do t\u1ea1i sao c\u00e1c nh\u00e0 \u0111\u1ea7u t\u01b0 kh\u00f4ng ph\u1ea3i khi n\u00e0o c\u0169ng lu\u00f4n c\u01b0 x\u1eed h\u1ee3p l\u00ed v\u00e0 \u1ee7ng h\u1ed9 c\u00e1c l\u1eadp lu\u1eadn r\u1eb1ng th\u1ecb tr\u01b0\u1eddng \u0111ang di\u1ec5n ra kh\u00f4ng hi\u1ec7u qu\u1ea3.<\/p>\n

V\u00ed d\u1ee5 v\u1ec1 Thi\u00ean ki\u1ebfn x\u00e1c nh\u1eadn<\/font><\/b><\/p>\n

Gi\u1ea3 s\u1eed m\u1ed9t nh\u00e0 \u0111\u1ea7u t\u01b0 nghe tin \u0111\u1ed3n r\u1eb1ng m\u1ed9t c\u00f4ng ty \u0111ang tr\u00ean b\u1edd v\u1ef1c tuy\u00ean b\u1ed1 ph\u00e1 s\u1ea3n. D\u1ef1a tr\u00ean th\u00f4ng tin n\u00e0y, nh\u00e0 \u0111\u1ea7u t\u01b0 xem x\u00e9t b\u00e1n c\u1ed5 phi\u1ebfu. <\/p>\n

Khi h\u1ecd l\u00ean m\u1ea1ng \u0111\u1ec3 \u0111\u1ecdc nh\u1eefng tin t\u1ee9c m\u1edbi nh\u1ea5t v\u1ec1 c\u00f4ng ty, h\u1ecd ch\u1ec9 \u0111\u1ecdc nh\u1eefng c\u00e2u chuy\u1ec7n x\u00e1c nh\u1eadn k\u1ecbch b\u1ea3n ph\u00e1 s\u1ea3n c\u00f3 kh\u1ea3 n\u0103ng x\u1ea3y ra v\u00e0 \u0111\u00e3 b\u1ecf l\u1ee1 c\u00e2u chuy\u1ec7n v\u1ec1 m\u1ed9t s\u1ea3n ph\u1ea9m m\u1edbi m\u00e0 c\u00f4ng ty v\u1eeba tung ra d\u1ef1 ki\u1ebfn s\u1ebd ho\u1ea1t \u0111\u1ed9ng t\u1ed1t v\u00e0 gi\u00fap t\u0103ng doanh s\u1ed1. <\/p>\n

Thay v\u00ec n\u1eafm gi\u1eef c\u1ed5 phi\u1ebfu, nh\u00e0 \u0111\u1ea7u t\u01b0 b\u00e1n n\u00f3 v\u1edbi m\u1ee9c l\u1ed7 \u0111\u00e1ng k\u1ec3 ngay tr\u01b0\u1edbc khi c\u1ed5 phi\u1ebfu quay \u0111\u1ea7u v\u00e0 t\u0103ng l\u00ean m\u1ee9c gi\u00e1 cao nh\u1ea5t m\u1ecdi th\u1eddi \u0111\u1ea1i.<\/p>\n

V\u01b0\u1ee3t qua Thi\u00ean ki\u1ebfn x\u00e1c nh\u1eadn<\/font><\/b><\/h3>\n

C\u00e1ch \u0111\u1ec3 v\u01b0\u1ee3t qua thi\u00ean ki\u1ebfn x\u00e1c nh\u1eadn<\/b> l\u00e0:<\/p>\n

– T\u00ecm ki\u1ebfm nh\u1eefng l\u1eddi khuy\u00ean tr\u00e1i ng\u01b0\u1ee3c:\u00a0<\/i><\/p>\n

Khi m\u1ed9t nh\u00e0 \u0111\u1ea7u t\u01b0 \u0111\u00e3 thu th\u1eadp th\u00f4ng tin h\u1ed7 tr\u1ee3 \u00fd ki\u1ebfn v\u00e0 ni\u1ec1m tin c\u1ee7a h\u1ecd v\u1ec1 m\u1ed9t kho\u1ea3n \u0111\u1ea7u t\u01b0 c\u1ee5 th\u1ec3, h\u1ecd n\u00ean t\u00ecm ki\u1ebfm nh\u1eefng \u00fd t\u01b0\u1edfng tr\u00e1i ng\u01b0\u1ee3c kh\u00e1c \u0111\u1ec3 th\u00e1ch th\u1ee9c quan \u0111i\u1ec3m c\u1ee7a h\u1ecd. <\/p>\n

T\u1eeb \u0111\u00f3 nh\u00e0 \u0111\u1ea7u t\u01b0 h\u00e3y l\u1eadp m\u1ed9t danh s\u00e1ch c\u00e1c \u01b0u v\u00e0 nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a kho\u1ea3n \u0111\u1ea7u t\u01b0 v\u00e0 \u0111\u00e1nh gi\u00e1 l\u1ea1i n\u00f3 v\u1edbi m\u1ed9t t\u00e2m th\u1ebf kh\u00e1ch quan h\u01a1n.<\/p>\n

– Tr\u00e1nh c\u00e1c c\u00e2u h\u1ecfi x\u00e1c nh\u1eadn:\u00a0<\/i><\/p>\n

Nh\u00e0 \u0111\u1ea7u t\u01b0 kh\u00f4ng n\u00ean \u0111\u1eb7t c\u00e2u h\u1ecfi x\u00e1c nh\u1eadn k\u1ebft lu\u1eadn v\u1ec1 m\u1ed9t kho\u1ea3n \u0111\u1ea7u t\u01b0. <\/p>\n

V\u00ed d\u1ee5, nh\u1edd v\u00e0o vi\u1ec7c tham kh\u1ea3o \u00fd ki\u1ebfn ng\u01b0\u1eddi t\u01b0 v\u1ea5n, m\u1ed9t nh\u00e0 \u0111\u1ea7u t\u01b0 mu\u1ed1n mua m\u1ed9t c\u1ed5 phi\u1ebfu v\u00ec ch\u1ec9 s\u1ed1 P\/E th\u1ea5p.<\/p>\n

M\u1ed9t c\u00e1ch ti\u1ebfp c\u1eadn t\u1ed1t h\u01a1n l\u00e0 y\u00eau c\u1ea7u nh\u00e0 t\u01b0 v\u1ea5n cung c\u1ea5p th\u00eam th\u00f4ng tin v\u1ec1 c\u1ed5 phi\u1ebfu, t\u1eeb \u0111\u00f3 c\u00f3 th\u1ec3 k\u1ebft h\u1ee3p c\u00e1c th\u00f4ng tin \u0111\u1ec3 \u0111\u01b0a ra k\u1ebft lu\u1eadn kh\u00e1ch quan h\u01a1n.<\/p>\n

\u00a0(Theo Investopedia)<\/i><\/p>\n<\/p><\/div>\n","protected":false},"excerpt":{"rendered":"

\n Thi\u00ean ki\u1ebfn x\u00e1c nh\u1eadn (ti\u1ebfng Anh: Confirmation Bias) l\u00e0 m\u1ed9t thu\u1eadt ng\u1eef t\u1eeb l\u0129nh v\u1ef1c t\u00e2m l\u00ed h\u1ecdc nh\u1eadn th\u1ee9c, m\u00f4 t\u1ea3 c\u00e1ch m\u1ecdi ng\u01b0\u1eddi \u1ee7ng h\u1ed9 m\u1ed9t c\u00e1ch t\u1ef1 nhi\u00ean nh\u1eefng th\u00f4ng tin x\u00e1c nh\u1eadn ni\u1ec1m tin tr\u01b0\u1edbc \u0111\u00f3 c\u1ee7a h\u1ecd.\n <\/div>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[417],"tags":[],"_links":{"self":[{"href":"https:\/\/masterskills.org\/blog\/wp-json\/wp\/v2\/posts\/30271"}],"collection":[{"href":"https:\/\/masterskills.org\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/masterskills.org\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/masterskills.org\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/masterskills.org\/blog\/wp-json\/wp\/v2\/comments?post=30271"}],"version-history":[{"count":0,"href":"https:\/\/masterskills.org\/blog\/wp-json\/wp\/v2\/posts\/30271\/revisions"}],"wp:attachment":[{"href":"https:\/\/masterskills.org\/blog\/wp-json\/wp\/v2\/media?parent=30271"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/masterskills.org\/blog\/wp-json\/wp\/v2\/categories?post=30271"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/masterskills.org\/blog\/wp-json\/wp\/v2\/tags?post=30271"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}