{"id":35903,"date":"2023-12-08T11:29:16","date_gmt":"2023-12-08T11:29:16","guid":{"rendered":"https:\/\/masterskills.org\/blog\/hieu-ung-chu-so-ben-trai-left-digit-effect-la-gi.html"},"modified":"2023-12-23T21:01:25","modified_gmt":"2023-12-23T14:01:25","slug":"hieu-ung-chu-so-ben-trai-left-digit-effect-la-gi","status":"publish","type":"post","link":"https:\/\/masterskills.org\/blog\/hieu-ung-chu-so-ben-trai-left-digit-effect-la-gi.html","title":{"rendered":"Hi\u1ec7u \u1ee9ng ch\u1eef s\u1ed1 b\u00ean tr\u00e1i (Left-digit effect) l\u00e0 g\u00ec?"},"content":{"rendered":"
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H\u00ecnh minh h\u1ecda. Ngu\u1ed3n: BrightSide<\/p>\n<\/div>\n<\/div>\n

Hi\u1ec7u \u1ee9ng ch\u1eef s\u1ed1 b\u00ean tr\u00e1i<\/font><\/h2>\n

\u0110\u1ecbnh ngh\u0129a<\/b><\/p>\n

Hi\u1ec7u \u1ee9ng ch\u1eef s\u1ed1 b\u00ean tr\u00e1i<\/span><\/b> trong ti\u1ebfng Anh l\u00e0 Left-digit effect<\/b>.<\/p>\n

Hi\u1ec7u \u1ee9ng ch\u1eef s\u1ed1 b\u00ean tr\u00e1i<\/span><\/i> cho r\u1eb1ng n\u1ebfu c\u00f3 s\u1ef1 kh\u00e1c bi\u1ec7t ngay t\u1eeb ch\u1eef s\u1ed1 tr\u00e1i quy\u1ebft \u0111\u1ecbnh gi\u00e1 tr\u1ecb l\u1edbn nh\u1ea5t, ta l\u1eadp t\u1ee9c \u0111\u01b0a ra k\u1ebft lu\u1eadn ngay kh\u00f4ng c\u1ea7n xem x\u00e9t nhi\u1ec1u \u0111\u1ebfn c\u00e1c con s\u1ed1 ti\u1ebfp theo.<\/p>\n

N\u1ed9i dung c\u1ee7a hi\u1ec7u \u1ee9ng ch\u1eef s\u1ed1 b\u00ean tr\u00e1i<\/span><\/font><\/h3>\n

N\u0103m 1979, nh\u00e0 khoa h\u1ecdc Monroe \u0111\u00e3 tr\u00ecnh b\u00e0y m\u1ed9t th\u00ed nghi\u1ec7m so s\u00e1nh v\u1ec1 m\u1ee9c \u0111\u1ed9 c\u1ea3m nh\u1eadn c\u1ee7a kh\u00e1ch h\u00e0ng gi\u1eefa hai s\u1ea3n ph\u1ea9m \u0111\u01b0\u1ee3c khuy\u1ebfn m\u1ea1i.<\/p>\n

S\u1ea3n ph\u1ea9m A \u0111\u01b0\u1ee3c ni\u00eam y\u1ebft gi\u00e1 79 USD \u0111\u01b0\u1ee3c khuy\u1ebfn m\u1ea1i t\u1eeb gi\u00e1 g\u1ed1c 93 USD. B\u00ean c\u1ea1nh \u0111\u00f3, s\u1ea3n ph\u1ea9m B t\u01b0\u01a1ng t\u1ef1 \u0111\u01b0\u1ee3c d\u00e1n gi\u00e1 75 USD khi \u0111\u01b0\u1ee3c h\u1ea1 t\u1eeb gi\u00e1 g\u1ed1c 89 USD.<\/p>\n

\n\n\n\n\n\n\n
<\/th>\nS\u1ea3n ph\u1ea9m A<\/th>\nS\u1ea3n ph\u1ea9m B<\/th>\n<\/tr>\n<\/thead>\n
Gi\u00e1 g\u1ed1c<\/td>\n93 USD<\/td>\n89 USD<\/td>\n<\/tr>\n
Gi\u00e1 khuy\u1ebfn m\u00e3i<\/td>\n79 USD<\/td>\n75 USD<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

Tho\u1ea1t tr\u00f4ng, ph\u1ea7n l\u1edbn ng\u01b0\u1eddi tham gia l\u1ef1a ch\u1ecdn s\u1ea3n ph\u1ea9m A m\u1eb7c d\u00f9 s\u1ea3n ph\u1ea9m A \u0111\u1eaft h\u01a1n s\u1ea3n ph\u1ea9m B. L\u00ed gi\u1ea3i cho h\u00e0nh \u0111\u1ed9ng n\u00e0y, h\u1ecd cho r\u1eb1ng khi nh\u00ecn qua hai s\u1ea3n ph\u1ea9m h\u1ecd th\u1ea5y r\u1eb1ng s\u1ea3n ph\u1ea9m A gi\u1ea3m t\u1eeb con s\u1ed1 9 h\u00e0ng ch\u1ee5c xu\u1ed1ng 7 trong khi s\u1ea3n ph\u1ea9m B gi\u1ea3m t\u1eeb 8 xu\u1ed1ng 7, c\u00f3 ngh\u0129a l\u00e0 s\u1ea3n ph\u1ea9m A gi\u1ea3m nhi\u1ec1u h\u01a1n.<\/p>\n

\u0110i\u1ec3m th\u00fa v\u1ecb n\u1eb1m \u1edf ch\u1ed7, m\u1ee9c gi\u1ea3m c\u1ee7a c\u1ea3 hai s\u1ea3n ph\u1ea9m n\u00e0y th\u1ef1c s\u1ef1 b\u1eb1ng nhau (c\u00f9ng gi\u1ea3m 14 USD). X\u00e9t v\u1ec1 t\u1ec9 l\u1ec7 gi\u1ea3m gi\u00e1, th\u00ec A gi\u1ea3m 15,05% trong khi B gi\u1ea3m t\u1eadn 15,73%. Th\u1eadm ch\u00ed, c\u1ea3m gi\u00e1c c\u00e1ch bi\u1ec7t \u1ea3o v\u1eabn t\u1ed3n t\u1ea1i ngay c\u1ea3 khi ng\u01b0\u1eddi tham gia th\u00ed nghi\u1ec7m \u0111\u01b0\u1ee3c ch\u1ec9 r\u00f5 s\u1ef1 t\u01b0\u01a1ng \u0111\u1ed3ng c\u1ee7a hai m\u1ee9c khuy\u1ebfn m\u1ea1i sau \u0111\u00f3.<\/p>\n

C\u00e2u tr\u1ea3 l\u1eddi cho hi\u1ec7u \u1ee9ng ch\u1eef s\u1ed1 b\u00ean tr\u00e1i<\/span><\/font><\/h3>\n

Nh\u1eefng nghi\u00ean c\u1ee9u khoa h\u1ecdc b\u1ed5 sung v\u1ec1 sau \u0111\u00e3 ph\u00e1t hi\u1ec7n r\u1eb1ng, nguy\u00ean nh\u00e2n ch\u00ednh l\u00e0m cho ng\u01b0\u1eddi mua c\u1ea3m th\u1ea5y r\u1ebb n\u1eb1m \u1edf nh\u1eadn th\u1ee9c.<\/p>\n

Th\u00f4ng th\u01b0\u1eddng nh\u1eefng khuy\u1ebfn m\u1ea1i b\u00e1n h\u00e0ng hay ch\u1ec9 r\u00f5 con s\u1ed1 gi\u1ea3m gi\u00e1 ho\u1eb7c gi\u00e1 tr\u1ecb ph\u1ea7n tr\u0103m chi\u1ebft kh\u1ea5u. Th\u1ebf nh\u01b0ng, trong tr\u01b0\u1eddng h\u1ee3p kh\u00f4ng c\u00f3 nh\u1eefng th\u00f4ng tin n\u00e0y n\u00e3o b\u1ed9 con ng\u01b0\u1eddi s\u1ebd l\u1eadp t\u1ee9c th\u1ef1c hi\u1ec7n m\u1ed9t ph\u00e9p t\u00ednh c\u1ea3m nh\u1eadn \u0111\u1ec3 tr\u00e1nh ph\u1ea3i th\u1ef1c hi\u1ec7n m\u1ed9t ph\u00e9p t\u00ednh b\u1eb1ng m\u00e1y t\u00ednh.<\/p>\n

\u0110i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0, thay v\u00ec l\u1ea5y m\u00e1y t\u00ednh \u0111\u1ec3 t\u00ednh to\u00e1n ph\u00e9p gi\u1ea3m gi\u00e1, ng\u01b0\u1eddi ti\u00eau d\u00f9ng th\u01b0\u1eddng nh\u00ecn v\u00e0 \u01b0\u1edbc ch\u1eebng cho nhanh. Ch\u00ednh ph\u00e9p \u01b0\u1edbc ch\u1eebng n\u00e0y c\u0169ng c\u00f3 nh\u1eefng qui lu\u1eadt nh\u1ea5t \u0111\u1ecbnh, con ng\u01b0\u1eddi c\u00f3 xu h\u01b0\u1edbng so s\u00e1nh con s\u1ed1 d\u1ef1a tr\u00ean ch\u1eef s\u1ed1 \u0111\u1ea7u ti\u00ean b\u00ean tr\u00e1i (9 v\u00e0 7 nh\u01b0 trong v\u00ed d\u1ee5 tr\u00ean).<\/p>\n

(T\u00e0i li\u1ec7u tham kh\u1ea3o: Hi\u1ec7u \u1ee9ng chim m\u1ed3i, NXB Kinh t\u1ebf TP. H\u1ed3 Ch\u00ed Minh)<\/i><\/p>\n<\/p><\/div>\n","protected":false},"excerpt":{"rendered":"

\n Hi\u1ec7u \u1ee9ng ch\u1eef s\u1ed1 b\u00ean tr\u00e1i (ti\u1ebfng Anh: Left-digit effect) cho r\u1eb1ng n\u1ebfu c\u00f3 s\u1ef1 kh\u00e1c bi\u1ec7t ngay t\u1eeb ch\u1eef s\u1ed1 tr\u00e1i quy\u1ebft \u0111\u1ecbnh gi\u00e1 tr\u1ecb l\u1edbn nh\u1ea5t, ta l\u1eadp t\u1ee9c \u0111\u01b0a ra k\u1ebft lu\u1eadn ngay kh\u00f4ng c\u1ea7n xem x\u00e9t nhi\u1ec1u \u0111\u1ebfn c\u00e1c con s\u1ed1 ti\u1ebfp theo.\n <\/div>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[422],"tags":[],"_links":{"self":[{"href":"https:\/\/masterskills.org\/blog\/wp-json\/wp\/v2\/posts\/35903"}],"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=35903"}],"version-history":[{"count":1,"href":"https:\/\/masterskills.org\/blog\/wp-json\/wp\/v2\/posts\/35903\/revisions"}],"predecessor-version":[{"id":68602,"href":"https:\/\/masterskills.org\/blog\/wp-json\/wp\/v2\/posts\/35903\/revisions\/68602"}],"wp:attachment":[{"href":"https:\/\/masterskills.org\/blog\/wp-json\/wp\/v2\/media?parent=35903"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/masterskills.org\/blog\/wp-json\/wp\/v2\/categories?post=35903"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/masterskills.org\/blog\/wp-json\/wp\/v2\/tags?post=35903"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}