{"id":24335,"date":"2023-12-06T12:08:18","date_gmt":"2023-12-06T12:08:18","guid":{"rendered":"https:\/\/masterskills.org\/blog\/mo-hinh-nhi-quyen-bertrand-bertrands-duopoly-model-la-gi.html"},"modified":"2023-12-22T09:38:27","modified_gmt":"2023-12-22T02:38:27","slug":"mo-hinh-nhi-quyen-bertrand-bertrands-duopoly-model-la-gi","status":"publish","type":"post","link":"https:\/\/masterskills.org\/blog\/mo-hinh-nhi-quyen-bertrand-bertrands-duopoly-model-la-gi.html","title":{"rendered":"M\u00f4 h\u00ecnh nh\u1ecb quy\u1ec1n Bertrand (Bertrand\u2019s Duopoly Model) l\u00e0 g\u00ec?"},"content":{"rendered":"
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\"M\u00f4<\/div>
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H\u00ecnh minh h\u1ecda<\/p>\n<\/figcaption><\/figure>\n

M\u00f4 h\u00ecnh nh\u1ecb quy\u1ec1n Bertrand (Bertrand’s Duopoly Model)<\/font><\/h2>\n

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

M\u00f4 h\u00ecnh nh\u1ecb quy\u1ec1n Bertrand<\/b> trong ti\u1ebfng Anh l\u00e0 Bertrand’s Duopoly Model<\/b>.<\/p>\n

M\u00f4 h\u00ecnh nh\u1ecb quy\u1ec1n Bertrand<\/i> \u0111\u01b0\u1ee3c nh\u00e0 kinh t\u1ebf h\u1ecdc c\u00f9ng t\u00ean thi\u1ebft l\u1eadp v\u00e0o n\u0103m 1883. M\u00f4 h\u00ecnh c\u1ee7a \u00f4ng kh\u00e1c v\u1edbi\u00a0m\u00f4 h\u00ecnh nh\u1ecb quy\u1ec1n Cournot\u00a0\u1edf ch\u1ed7 \u00f4ng cho r\u1eb1ng m\u1ed7i c\u00f4ng ty \u0111\u1ec1u k\u00ec v\u1ecdng r\u1eb1ng \u0111\u1ed1i th\u1ee7 s\u1ebd gi\u1eef gi\u00e1 kh\u00f4ng \u0111\u1ed5i, b\u1ea5t k\u1ec3 quy\u1ebft \u0111\u1ecbnh c\u1ee7a ch\u00ednh h\u1ecd v\u1ec1 gi\u00e1 c\u1ea3.<\/p>\n

Do \u0111\u00f3, m\u1ed7i c\u00f4ng ty ph\u1ea3i \u0111\u1ed1i m\u1eb7t nhu c\u1ea7u th\u1ecb tr\u01b0\u1eddng nh\u01b0 nhau v\u00e0 lu\u00f4n h\u01b0\u1edbng \u0111\u1ebfn m\u1ee5c ti\u00eau t\u1ed1i \u0111a h\u00f3a l\u1ee3i nhu\u1eadn v\u1edbi gi\u1ea3 \u0111\u1ecbnh r\u1eb1ng doanh nghi\u1ec7p \u0111\u1ed1i th\u1ee7 s\u1ebd kh\u00f4ng thay \u0111\u1ed5i gi\u00e1 c\u1ea3 c\u1ee7a h\u1ecd.<\/p>\n

M\u00f4 h\u00ecnh nh\u1ecb quy\u1ec1n Bertrand<\/i> \u0111\u01b0a \u0111\u1ebfn m\u1ed9t tr\u1ea1ng th\u00e1i c\u00e2n b\u1eb1ng \u1ed5n \u0111\u1ecbnh cho c\u1ea3 hai doanh nghi\u1ec7p.<\/p>\n

Ph\u00e2n t\u00edch m\u00f4 h\u00ecnh nh\u1ecb quy\u1ec1n Bertrand<\/font><\/h3>\n

V\u00ed d\u1ee5 trong h\u00ecnh v\u1ebd d\u01b0\u1edbi \u0111\u00e2y doanh nghi\u1ec7p A \u0111\u01b0\u1ee3c gi\u1ea3 \u0111\u1ecbnh l\u00e0 t\u1ed1i \u0111a h\u00f3a l\u1ee3i nhu\u1eadn khi doanh nghi\u1ec7p B kh\u00f4ng thay \u0111\u1ed5i gi\u00e1 c\u1ea3 c\u1ee7a m\u00ecnh.<\/p>\n

M\u00f4 h\u00ecnh nh\u1ecb quy\u1ec1n Bertrand \u0111\u01b0a \u0111\u1ebfn m\u1ed9t tr\u1ea1ng th\u00e1i c\u00e2n b\u1eb1ng \u1ed5n \u0111\u1ecbnh cho doanh nghi\u1ec7p A v\u00e0 doanh nghi\u1ec7p B. \u0110i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 minh h\u1ecda b\u1eb1ng m\u1ed9t h\u1ec7 tr\u1ee5c t\u1ecda \u0111\u1ed9 c\u00f3 hai \u0111\u01b0\u1eddng ph\u1ea3n \u1ee9ng c\u1ee7a hai doanh nghi\u1ec7p.<\/p>\n

\u0110\u1ed1i v\u1edbi doanh nghi\u1ec7p A, ch\u00fang ta c\u00f3 th\u1ec3 v\u1ebd ra m\u1ed9t qu\u0129 t\u00edch c\u00e1c \u0111i\u1ec3m c\u00f3 l\u1ee3i nhu\u1eadn t\u1ed1i \u0111a khi b\u00e1n h\u00e0ng v\u1edbi c\u00e1c m\u1ee9c gi\u00e1 PA<\/sub> kh\u00e1c nhau tr\u00ean c\u01a1 s\u1edf gi\u1ea3 \u0111\u1ecbnh doanh nghi\u1ec7p B b\u00e1n h\u00e0ng v\u1edbi m\u1ee9c gi\u00e1 PB<\/sub>. Tr\u1ea1ng th\u00e1i c\u00e2n b\u1eb1ng \u1ed5n \u0111\u1ecbnh \u0111\u1ea1t \u0111\u01b0\u1ee3c t\u1ea1i \u0111i\u1ec3m E, khi hai \u0111\u01b0\u1eddng ph\u1ea3n \u1ee9ng c\u1eaft nhau v\u00e0 c\u1ea3 hai doanh nghi\u1ec7p b\u00e1n h\u00e0ng v\u1edbi gi\u00e1 nh\u01b0 nhau.<\/p>\n

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Ngu\u1ed3n: T\u1eeb \u0111i\u1ec3n Kinh t\u1ebf h\u1ecdc, NXB \u0110\u1ea1i h\u1ecdc Kinh t\u1ebf Qu\u1ed1c d\u00e2n<\/p>\n<\/figcaption><\/figure>\n

Ng\u01b0\u1eddi ta ph\u00ea ph\u00e1n m\u00f4 h\u00ecnh n\u00e0y v\u00ec n\u00f3 \u0111\u01b0a ra nh\u1eefng gi\u1ea3 \u0111\u1ecbnh ng\u00e2y th\u01a1 v\u1ec1 h\u00e0nh vi d\u1ef1 di\u1ebfn, trong khi kh\u00f4ng t\u00ednh \u0111\u1ebfn chi ph\u00ed s\u1ea3n xu\u1ea5t v\u00e0 kh\u1ea3 n\u0103ng c\u00f3 c\u00e1c doanh nghi\u1ec7p m\u1edbi gia nh\u1eadp th\u1ecb tr\u01b0\u1eddng.<\/p>\n

Li\u00ean h\u1ec7 th\u1ef1c ti\u1ec5n<\/font><\/h3>\n

Sau khi th\u1ea3o lu\u1eadn v\u1ec1 c\u00e1c m\u00f4 h\u00ecnh nh\u1ecb quy\u1ec1n<\/span> c\u1ed5 \u0111i\u1ec3n c\u1ee7a Cournot v\u00e0 Bertrand, nhi\u1ec1u nh\u00e0 kinh t\u1ebf \u0111\u00e3 ti\u1ebfn h\u00e0nh ph\u00e1t tri\u1ec3n c\u00e1c m\u00f4 h\u00ecnh nh\u1ecb quy\u1ec1n<\/span> truy\u1ec1n th\u1ed1ng kh\u00f4ng th\u00f4ng \u0111\u1ed3ng, \u00e1p d\u1ee5ng cho c\u00e1c c\u1ea5u tr\u00fac th\u1ecb tr\u01b0\u1eddng v\u1edbi m\u1ed9t v\u00e0i c\u00f4ng ty nh\u1eadn th\u1ee9c \u0111\u01b0\u1ee3c s\u1ef1 ph\u1ee5 thu\u1ed9c l\u1eabn nhau.<\/p>\n

Tuy nhi\u00ean, \u0111i\u1ec1u quan tr\u1ecdng l\u00e0 c\u1ea3 hai m\u00f4 h\u00ecnh nh\u1ecb quy\u1ec1n Cournot v\u00e0 Bertrand, \u0111\u1ec1u c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c m\u1edf r\u1ed9ng sang c\u00e1c th\u1ecb tr\u01b0\u1eddng m\u00e0 s\u1ed1 l\u01b0\u1ee3ng doanh nghi\u1ec7p l\u1edbn h\u01a1n hai.<\/p>\n

(T\u00e0i li\u1ec7u tham kh\u1ea3o: Economicsdiscussion.net;\u00a0T\u1eeb \u0111i\u1ec3n Kinh t\u1ebf h\u1ecdc, NXB \u0110\u1ea1i h\u1ecdc Kinh t\u1ebf Qu\u1ed1c d\u00e2n)<\/i><\/p>\n<\/p><\/div>\n","protected":false},"excerpt":{"rendered":"

\n M\u00f4 h\u00ecnh nh\u1ecb quy\u1ec1n Bertrand (ti\u1ebfng Anh: Bertrand\u2019s Duopoly Model) kh\u00e1c m\u00f4 h\u00ecnh nh\u1ecb quy\u1ec1n Cournot \u1edf ch\u1ed7 m\u1ed9t doanh nghi\u1ec7p \u0111\u01b0\u1ee3c gi\u1ea3 \u0111\u1ecbnh l\u00e0 t\u1ed1i \u0111a h\u00f3a l\u1ee3i nhu\u1eadn khi doanh nghi\u1ec7p c\u00f2n l\u1ea1i kh\u00f4ng thay \u0111\u1ed5i gi\u00e1 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":[414],"tags":[],"_links":{"self":[{"href":"https:\/\/masterskills.org\/blog\/wp-json\/wp\/v2\/posts\/24335"}],"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=24335"}],"version-history":[{"count":0,"href":"https:\/\/masterskills.org\/blog\/wp-json\/wp\/v2\/posts\/24335\/revisions"}],"wp:attachment":[{"href":"https:\/\/masterskills.org\/blog\/wp-json\/wp\/v2\/media?parent=24335"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/masterskills.org\/blog\/wp-json\/wp\/v2\/categories?post=24335"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/masterskills.org\/blog\/wp-json\/wp\/v2\/tags?post=24335"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}