{"id":23884,"date":"2023-12-06T08:58:13","date_gmt":"2023-12-06T08:58:13","guid":{"rendered":"https:\/\/masterskills.org\/blog\/ham-san-xuat-cobb-douglas-cobb-douglas-production-function-la-gi.html"},"modified":"2023-12-06T08:58:13","modified_gmt":"2023-12-06T08:58:13","slug":"ham-san-xuat-cobb-douglas-cobb-douglas-production-function-la-gi","status":"publish","type":"post","link":"https:\/\/masterskills.org\/blog\/ham-san-xuat-cobb-douglas-cobb-douglas-production-function-la-gi.html","title":{"rendered":"H\u00e0m s\u1ea3n xu\u1ea5t Cobb-Douglas (Cobb-Douglas Production Function) l\u00e0 g\u00ec?"},"content":{"rendered":"
\n
\n
\"H\u00e0m<\/div>
\n

(H\u00ecnh minh h\u1ecda: Study.com)<\/p>\n<\/figcaption><\/figure>\n

H\u00e0m s\u1ea3n xu\u1ea5t Cobb-Douglas<\/font><\/h2>\n

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

H\u00e0m s\u1ea3n xu\u1ea5t Cobb-Douglas<\/b> trong ti\u1ebfng Anh l\u00e0\u00a0Cobb-Douglas Production Function<\/b>.<\/p>\n

H\u00e0m s\u1ea3n xu\u1ea5t Cobb-Douglas<\/b> \u0111\u01b0\u1ee3c \u0111\u01b0a ra b\u1edfi Charles W. Cobb v\u00e0 Paul H. Douglas, l\u00e0 m\u1ed9t h\u00e0m s\u1ea3n xu\u1ea5t \u0111\u1ed3ng nh\u1ea5t tuy\u1ebfn t\u00ednh, trong \u0111\u00f3 h\u00e0m \u00fd r\u1eb1ng, c\u00e1c y\u1ebfu t\u1ed1 s\u1ea3n xu\u1ea5t c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c thay th\u1ebf b\u1edfi m\u1ed9t y\u1ebfu t\u1ed1 kh\u00e1c \u0111\u1ebfn m\u1ed9t m\u1ee9c \u0111\u1ed9 nh\u1ea5t \u0111\u1ecbnh.<\/p>\n

V\u1edbi s\u1ef1 gia t\u0103ng t\u1ec9 l\u1ec7 trong c\u00e1c y\u1ebfu t\u1ed1 \u0111\u1ea7u v\u00e0o, \u0111\u1ea7u ra c\u0169ng t\u0103ng theo t\u1ec9 l\u1ec7 t\u01b0\u01a1ng t\u1ef1. V\u00ec v\u1eady, l\u1ee3i t\u1ee9c s\u1ebd kh\u00f4ng \u0111\u1ed5i theo qui m\u00f4. Trong h\u00e0m s\u1ea3n xu\u1ea5t Cobb-Douglas, ch\u1ec9 c\u00f3 hai y\u1ebfu t\u1ed1 \u0111\u1ea7u v\u00e0o l\u00e0 lao \u0111\u1ed9ng (L) v\u00e0 v\u1ed1n (K) \u0111\u01b0\u1ee3c xem x\u00e9t, v\u00e0 \u0111\u1ed9 co gi\u00e3n c\u1ee7a c\u00e1c y\u1ebfu t\u1ed1 thay th\u1ebf b\u1eb1ng 1. Ng\u01b0\u1eddi ta c\u0169ng gi\u1ea3 \u0111\u1ecbnh r\u1eb1ng, n\u1ebfu c\u00f3 b\u1ea5t k\u00ec y\u1ebfu t\u1ed1 \u0111\u1ea7u v\u00e0o n\u00e0o b\u1eb1ng 0 th\u00ec \u0111\u1ea7u ra c\u0169ng b\u1eb1ng 0.<\/p>\n

T\u01b0\u01a1ng t\u1ef1, trong h\u00e0m s\u1ea3n xu\u1ea5t \u0111\u1ed3ng nh\u1ea5t tuy\u1ebfn t\u00ednh, \u0111\u01b0\u1eddng m\u1edf r\u1ed9ng \u0111\u01b0\u1ee3c t\u1ea1o b\u1edfi h\u00e0m Cobb-Douglas c\u0169ng l\u00e0 m\u1ed9t \u0111\u01b0\u1eddng th\u1eb3ng \u0111i qua g\u1ed1c t\u1ecda \u0111\u1ed9.\u00a0<\/p>\n

Bi\u1ec3u di\u1ec5n h\u00e0m s\u1ea3n xu\u1ea5t Cobb-Douglas<\/font><\/h3>\n

H\u00e0m Cobb-Douglas c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c bi\u1ec3u th\u1ecb nh\u01b0 sau:\u00a0<\/p>\n

Q = AL\u03b1<\/sup>\u00a0K\u03b2<\/sup><\/p>\n

Trong \u0111\u00f3,<\/p>\n

– Q l\u00e0 s\u1ea3n l\u01b0\u1ee3ng<\/p>\n

– A, \u03b1, \u03b2 l\u00e0 c\u00e1c h\u1eb1ng s\u1ed1 d\u01b0\u01a1ng<\/p>\n

– L l\u00e0 lao \u0111\u1ed9ng\u00a0<\/p>\n

– K l\u00e0 v\u1ed1n \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng.\u00a0<\/p>\n

\u03b1 v\u00e0 \u03b2 cho th\u1ea5y h\u1ec7 s\u1ed1 co gi\u00e3n c\u1ee7a \u0111\u1ea7u ra t\u01b0\u01a1ng \u1ee9ng cho L v\u00e0 K, ch\u00fang c\u1ed1 \u0111\u1ecbnh v\u00e0 do c\u00f4ng ngh\u1ec7 quy\u1ebft \u0111\u1ecbnh. \u0110\u00e2y l\u00e0 m\u1ed9t h\u00e0m thu\u1ea7n nh\u1ea5t c\u00f3 b\u1eadc thu\u1ea7n nh\u1ea5t b\u1eb1ng \u03b1 + \u03b2, v\u00ec khi nh\u00e2n L v\u00e0 K v\u1edbi h\u1ec7 s\u1ed1 k kh\u00f4ng \u0111\u1ed5i n\u00e0o \u0111\u00f3, s\u1ea3n l\u01b0\u1ee3ng s\u1ebd t\u0103ng v\u1edbi t\u1ef7 l\u1ec7 k(\u03b1 + \u03b2)<\/sup>.<\/p>\n

N\u1ebfu: \u03b1 + \u03b2 = 1, th\u00ec h\u00e0m s\u1ea3n xu\u1ea5t c\u00f3 l\u1ee3i t\u1ee9c kh\u00f4ng \u0111\u1ed5i theo qui m\u00f4, ngh\u0129a l\u00e0 d\u00f9 lao \u0111\u1ed9ng v\u00e0 v\u1ed1n c\u00f3 t\u0103ng th\u00eam 20% m\u1ed7i th\u1ee9, th\u00ec s\u1ea3n l\u01b0\u1ee3ng c\u0169ng ch\u1ec9 t\u0103ng th\u00eam \u0111\u00fang 20%.<\/p>\n

N\u1ebfu: \u03b1 + \u03b2 < 1, th\u00ec h\u00e0m s\u1ea3n xu\u1ea5t c\u00f3 l\u1ee3i t\u1ee9c gi\u1ea3m d\u1ea7n theo qui m\u00f4.<\/p>\n

C\u00f2n n\u1ebfu: \u03b1 + \u03b2 > 1 th\u00ec h\u00e0m s\u1ea3n xu\u1ea5t c\u00f3 l\u1ee3i t\u1ee9c t\u0103ng d\u1ea7n theo qui m\u00f4.<\/p>\n

Trong tr\u01b0\u1eddng h\u1ee3p th\u1ecb tr\u01b0\u1eddng (hay n\u1ec1n kinh t\u1ebf) \u1edf tr\u1ea1ng th\u00e1i\u00a0c\u1ea1nh tranh ho\u00e0n h\u1ea3o, \u03b1 v\u00e0 \u03b2 c\u00f3 th\u1ec3 xem l\u00e0 t\u1ec9 l\u1ec7 \u0111\u00f3ng g\u00f3p c\u1ee7a lao \u0111\u1ed9ng v\u00e0 v\u1ed1n v\u00e0o s\u1ea3n l\u01b0\u1ee3ng.<\/p>\n

D\u1ea1ng \u0111\u1ea1i s\u1ed1 n\u00e0y c\u1ee7a h\u00e0m Cobb-Douglas c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c thay \u0111\u1ed5i \u1edf d\u1ea1ng tuy\u1ebfn t\u00ednh log, v\u1edbi s\u1ef1 tr\u1ee3 gi\u00fap c\u1ee7a ph\u00e2n t\u00edch h\u1ed3i qui:<\/p>\n

Log Q = log A + \u03b1 log L + \u03b2 log K<\/p>\n

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

\n H\u00e0m s\u1ea3n xu\u1ea5t Cobb-Douglas (ti\u1ebfng Anh: Cobb-Douglas Production Function) l\u00e0 m\u1ed9t h\u00e0m s\u1ea3n xu\u1ea5t \u0111\u1ed3ng nh\u1ea5t tuy\u1ebfn t\u00ednh, trong \u0111\u00f3 h\u00e0m \u00fd r\u1eb1ng, c\u00e1c y\u1ebfu t\u1ed1 s\u1ea3n xu\u1ea5t c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c thay th\u1ebf b\u1edfi m\u1ed9t y\u1ebfu t\u1ed1 kh\u00e1c \u0111\u1ebfn m\u1ed9t m\u1ee9c \u0111\u1ed9 nh\u1ea5t \u0111\u1ecbnh.\n <\/div>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[414],"tags":[],"_links":{"self":[{"href":"https:\/\/masterskills.org\/blog\/wp-json\/wp\/v2\/posts\/23884"}],"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=23884"}],"version-history":[{"count":0,"href":"https:\/\/masterskills.org\/blog\/wp-json\/wp\/v2\/posts\/23884\/revisions"}],"wp:attachment":[{"href":"https:\/\/masterskills.org\/blog\/wp-json\/wp\/v2\/media?parent=23884"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/masterskills.org\/blog\/wp-json\/wp\/v2\/categories?post=23884"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/masterskills.org\/blog\/wp-json\/wp\/v2\/tags?post=23884"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}