{"id":16402,"date":"2026-04-07T14:35:58","date_gmt":"2026-04-07T07:35:58","guid":{"rendered":"https:\/\/mb668s.com\/cam-nang-7mb66-xoc-dia\/?p=16402"},"modified":"2026-05-28T12:10:16","modified_gmt":"2026-05-28T05:10:16","slug":"lai-don-va-lai-kep-nen-lua-chon-phuong-phap-nao","status":"publish","type":"post","link":"https:\/\/mb668s.com\/cam-nang-7mb66-xoc-dia\/tu-van-nghe-nghiep\/lai-don-va-lai-kep-nen-lua-chon-phuong-phap-nao","title":{"rendered":"L\u00e3i \u0111\u01a1n v\u00e0 l\u00e3i k\u00e9p n\u00ean l\u1ef1a ch\u1ecdn ph\u01b0\u01a1ng ph\u00e1p n\u00e0o khi \u0111\u1ea7u t\u01b0?"},"content":{"rendered":"\n
Khi b\u1eaft \u0111\u1ea7u g\u1eedi ti\u1ebft ki\u1ec7m hay tham gia c\u00e1c k\u00eanh \u0111\u1ea7u t\u01b0 d\u00e0i h\u1ea1n, c\u00e2u h\u1ecfi l\u00e3i \u0111\u01a1n v\u00e0 l\u00e3i k\u00e9p n\u00ean l\u1ef1a ch\u1ecdn ph\u01b0\u01a1ng ph\u00e1p n\u00e0o<\/strong> lu\u00f4n khi\u1ebfn nhi\u1ec1u ng\u01b0\u1eddi b\u0103n kho\u0103n. Hai c\u00e1ch t\u00ednh l\u00e3i n\u00e0y t\u1ea1o ra kh\u00e1c bi\u1ec7t l\u1edbn v\u1ec1 s\u1ed1 ti\u1ec1n cu\u1ed1i k\u1ef3, \u0111\u1eb7c bi\u1ec7t khi th\u1eddi gian k\u00e9o d\u00e0i. B\u00e0i vi\u1ebft ph\u00e2n t\u00edch c\u00f4ng th\u1ee9c, v\u00ed d\u1ee5 minh h\u1ecda v\u00e0 t\u00ecnh hu\u1ed1ng \u00e1p d\u1ee5ng \u0111\u1ec3 b\u1ea1n c\u00f3 c\u01a1 s\u1edf so s\u00e1nh l\u00e3i \u0111\u01a1n (Simple Interest) v\u00e0 l\u00e3i k\u00e9p (Compound Interest)<\/strong> m\u1ed9t c\u00e1ch r\u00f5 r\u00e0ng tr\u01b0\u1edbc khi ra quy\u1ebft \u0111\u1ecbnh.<\/p>\n\n\n\n \u2013 L\u00e3i \u0111\u01a1n ch\u1ec9 t\u00ednh tr\u00ean v\u1ed1n g\u1ed1c ban \u0111\u1ea7u, ph\u00f9 h\u1ee3p kho\u1ea3n vay ho\u1eb7c tr\u00e1i phi\u1ebfu ng\u1eafn h\u1ea1n.<\/p>\n \u2013 L\u00e3i k\u00e9p t\u00ednh l\u00e3i tr\u00ean c\u1ea3 g\u1ed1c v\u00e0 l\u00e3i t\u00edch l\u0169y, t\u1ea1o hi\u1ec7u \u1ee9ng “qu\u1ea3 c\u1ea7u tuy\u1ebft” theo th\u1eddi gian.<\/p>\n \u2013 C\u00f4ng th\u1ee9c l\u00e3i k\u00e9p t\u1ed5ng qu\u00e1t: A = P(1 + r\/n)^(nt).<\/p>\n \u2013 Th\u1eddi gian c\u00e0ng d\u00e0i, ch\u00eanh l\u1ec7ch gi\u1eefa hai ph\u01b0\u01a1ng ph\u00e1p c\u00e0ng l\u1edbn.<\/p>\n<\/div>\n\n\n\n L\u00e3i \u0111\u01a1n (Simple Interest) l\u00e0 ph\u01b0\u01a1ng ph\u00e1p t\u00ednh l\u00e3i ch\u1ec9 d\u1ef1a tr\u00ean s\u1ed1 v\u1ed1n g\u1ed1c ban \u0111\u1ea7u trong su\u1ed1t k\u1ef3 h\u1ea1n, kh\u00f4ng c\u1ed9ng d\u1ed3n ph\u1ea7n l\u00e3i \u0111\u00e3 ph\u00e1t sinh v\u00e0o g\u1ed1c cho k\u1ef3 ti\u1ebfp theo. \u0110\u00e2y l\u00e0 c\u00e1ch t\u00ednh ph\u1ed5 bi\u1ebfn trong c\u00e1c kho\u1ea3n vay ti\u00eau d\u00f9ng ng\u1eafn h\u1ea1n, tr\u00e1i phi\u1ebfu coupon c\u1ed1 \u0111\u1ecbnh v\u00e0 m\u1ed9t s\u1ed1 s\u1ea3n ph\u1ea9m ti\u1ec1n g\u1eedi kh\u00f4ng t\u1ef1 \u0111\u1ed9ng t\u00e1i t\u1ee5c t\u1ea1i nhi\u1ec1u ng\u00e2n h\u00e0ng th\u01b0\u01a1ng m\u1ea1i Vi\u1ec7t Nam \u0111\u01b0\u1ee3c gi\u00e1m s\u00e1t b\u1edfi Ng\u00e2n h\u00e0ng Nh\u00e0 n\u01b0\u1edbc Vi\u1ec7t Nam (NHNN) theo Lu\u1eadt C\u00e1c t\u1ed5 ch\u1ee9c t\u00edn d\u1ee5ng 2010.<\/p>\n\n\n\n C\u00f4ng th\u1ee9c l\u00e3i \u0111\u01a1n \u0111\u01b0\u1ee3c vi\u1ebft g\u1ecdn nh\u01b0 sau: I = P \u00d7 r \u00d7 t. Trong \u0111\u00f3 P l\u00e0 v\u1ed1n g\u1ed1c, r l\u00e0 l\u00e3i su\u1ea5t theo n\u0103m v\u00e0 t l\u00e0 s\u1ed1 n\u0103m g\u1eedi. S\u1ed1 ti\u1ec1n cu\u1ed1i k\u1ef3 A = P + I = P(1 + r \u00d7 t). V\u00ed d\u1ee5, g\u1eedi 100 tri\u1ec7u \u0111\u1ed3ng v\u1edbi l\u00e3i su\u1ea5t 10%\/n\u0103m trong 5 n\u0103m theo l\u00e3i \u0111\u01a1n, t\u1ed5ng l\u00e3i nh\u1eadn \u0111\u01b0\u1ee3c l\u00e0 50 tri\u1ec7u \u0111\u1ed3ng v\u00e0 s\u1ed1 ti\u1ec1n cu\u1ed1i k\u1ef3 \u0111\u1ea1t 150 tri\u1ec7u \u0111\u1ed3ng. C\u00e1ch t\u00ednh n\u00e0y d\u1ec5 hi\u1ec3u, minh b\u1ea1ch v\u00e0 thu\u1eadn ti\u1ec7n cho ng\u01b0\u1eddi vay v\u00ec chi ph\u00ed kh\u00f4ng ph\u00ecnh to theo c\u1ea5p s\u1ed1 nh\u00e2n.<\/p>\n\n\n\n L\u00e3i k\u00e9p (Compound Interest) l\u00e0 ph\u01b0\u01a1ng ph\u00e1p c\u1ed9ng ph\u1ea7n l\u00e3i c\u1ee7a m\u1ed7i k\u1ef3 v\u00e0o v\u1ed1n g\u1ed1c, bi\u1ebfn t\u1ed5ng s\u1ed1 \u0111\u00f3 th\u00e0nh c\u01a1 s\u1edf t\u00ednh l\u00e3i cho k\u1ef3 k\u1ebf ti\u1ebfp. Albert Einstein t\u1eebng g\u1ecdi l\u00e3i k\u00e9p l\u00e0 “k\u1ef3 quan th\u1ee9 t\u00e1m c\u1ee7a th\u1ebf gi\u1edbi” \u0111\u1ec3 nh\u1ea5n m\u1ea1nh s\u1ee9c m\u1ea1nh t\u00edch l\u0169y theo th\u1eddi gian. C\u01a1 ch\u1ebf n\u00e0y \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng r\u1ed9ng r\u00e3i t\u1ea1i qu\u1ef9 m\u1edf, ch\u1ee9ng ch\u1ec9 qu\u1ef9 ETF, b\u1ea3o hi\u1ec3m li\u00ean k\u1ebft \u0111\u1ea7u t\u01b0 v\u00e0 c\u00e1c t\u00e0i kho\u1ea3n ti\u1ebft ki\u1ec7m t\u1ef1 \u0111\u1ed9ng t\u00e1i t\u1ee5c.<\/p>\n\n\n\n C\u00f4ng th\u1ee9c t\u1ed5ng qu\u00e1t l\u00e0 A = P(1 + r\/n)^(nt), trong \u0111\u00f3 n l\u00e0 s\u1ed1 k\u1ef3 gh\u00e9p l\u00e3i m\u1ed7i n\u0103m. Khi n = 1, c\u00f4ng th\u1ee9c r\u00fat g\u1ecdn th\u00e0nh A = P(1 + r)^t. V\u1eabn v\u1edbi 100 tri\u1ec7u \u0111\u1ed3ng, l\u00e3i su\u1ea5t 10%\/n\u0103m gh\u00e9p l\u00e3i h\u1eb1ng n\u0103m trong 5 n\u0103m, s\u1ed1 ti\u1ec1n cu\u1ed1i k\u1ef3 \u0111\u1ea1t kho\u1ea3ng 161,05 tri\u1ec7u \u0111\u1ed3ng \u2013 ch\u00eanh l\u1ec7ch h\u01a1n 11 tri\u1ec7u so v\u1edbi l\u00e3i \u0111\u01a1n. \u0110\u00e2y l\u00e0 \u0111i\u1ec3m kh\u1edfi \u0111\u1ea7u \u0111\u1ec3 hi\u1ec3u v\u00ec sao nh\u1eefng ng\u01b0\u1eddi l\u00e0m trong c\u00e1c v\u1ecb tr\u00ed vi\u1ec7c l\u00e0m t\u00e0i ch\u00ednh \/ \u0111\u1ea7u t\u01b0<\/a><\/em><\/strong> th\u01b0\u1eddng t\u01b0 v\u1ea5n kh\u00e1ch h\u00e0ng \u01b0u ti\u00ean l\u00e3i k\u00e9p cho m\u1ee5c ti\u00eau d\u00e0i h\u1ea1n nh\u01b0 h\u01b0u tr\u00ed hay h\u1ecdc v\u1ea5n cho con c\u00e1i.<\/p>\n\n\n\n “L\u00e3i k\u00e9p l\u00e0 k\u1ef3 quan th\u1ee9 t\u00e1m c\u1ee7a th\u1ebf gi\u1edbi. Ai hi\u1ec3u n\u00f3 s\u1ebd ki\u1ebfm \u0111\u01b0\u1ee3c ti\u1ec1n t\u1eeb n\u00f3, ai kh\u00f4ng hi\u1ec3u s\u1ebd ph\u1ea3i tr\u1ea3 gi\u00e1 cho n\u00f3.” \u2013 Albert Einstein<\/p>\n\n<\/blockquote>\n\n\n\n \u0110\u1ec3 th\u1ea5y r\u00f5 ch\u00eanh l\u1ec7ch, h\u00e3y l\u1ea5y chung m\u1ed9t k\u1ecbch b\u1ea3n: v\u1ed1n g\u1ed1c 100 tri\u1ec7u \u0111\u1ed3ng, l\u00e3i su\u1ea5t 10%\/n\u0103m, gh\u00e9p l\u00e3i h\u1eb1ng n\u0103m v\u00e0 x\u00e9t \u1edf c\u00e1c m\u1ed1c 5, 10, 20 n\u0103m. \u0110\u00e2y l\u00e0 k\u1ecbch b\u1ea3n gi\u1ea3 \u0111\u1ecbnh nh\u1eb1m minh h\u1ecda c\u00f4ng th\u1ee9c, k\u1ebft qu\u1ea3 th\u1ef1c t\u1ebf ph\u1ee5 thu\u1ed9c l\u00e3i su\u1ea5t th\u1ecb tr\u01b0\u1eddng v\u00e0 ch\u00ednh s\u00e1ch c\u1ee7a t\u1ed5 ch\u1ee9c t\u00edn d\u1ee5ng t\u1eebng th\u1eddi k\u1ef3.<\/p>\n\n\n\n
<\/figure>\n\n\n\n1. L\u00e3i \u0111\u01a1n l\u00e0 g\u00ec v\u00e0 c\u00f4ng th\u1ee9c t\u00ednh<\/h2>\n\n\n\n
2. L\u00e3i k\u00e9p l\u00e0 g\u00ec v\u00e0 c\u00f4ng th\u1ee9c t\u00ednh<\/h2>\n\n\n\n
\n\n
3. So s\u00e1nh chi ti\u1ebft l\u00e3i \u0111\u01a1n v\u00e0 l\u00e3i k\u00e9p qua s\u1ed1 li\u1ec7u c\u1ee5 th\u1ec3<\/h2>\n\n\n\n