V2EX supermodular

Supermodular

定义 Definition

supermodular(超模的/超模函数的):在数学、运筹学与经济学中,指一种满足“增量互补性”的性质的函数或集合函数。常见表述是:对任意 \(x \le x'\)、\(y \le y'\),有
\[ f(x',y')-f(x,y') \ge f(x',y)-f(x,y) \] 直观上表示:当一个变量变大时,另一个变量的“边际收益/增量”不减(变量之间具有互补性)。
(该词也可能出现在博弈论中,如“超模博弈 supermodular game”。)

发音 Pronunciation

/suprmdjlr/(美式常见也可为 /suprmdjlr/)

例句 Examples

A supermodular function captures complementarities between choices.
超模函数用于刻画不同选择之间的互补性。

Under supermodular payoffs, best responses are increasing, which helps prove the existence of monotone equilibria.
在收益具有超模性质时,最佳反应往往呈单调递增,从而有助于证明单调均衡的存在。

词源 Etymology

**super-**(拉丁语来源,意为“在上、超过”)+ modular(与“模/模格/模性”相关,来自 modulus “尺度/模”)。在现代用法中,supermodular 作为技术术语由数学与经济学文献固定下来,用来表示“比(某种)模性质更强/满足超模不等式”的结构性特征。

相关词Related Words

文学与著作中的用例 Literary Works

  • Donald M. Topkis, Supermodularity and Complementarity(1998)
  • Milgrom & Roberts, “Rationalizability, Learning, and Equilibrium in Games with Strategic Complementarities”(1990)
  • Vives, Oligopoly Pricing: Old Ideas and New Tools(1999)(讨论战略互补与相关的超模结构)
关于     帮助文档     自助推广系统     博客     API     FAQ     Solana     5772 人在线   最高记录 6679       Select Language
创意工作者们的社区
World is powered by solitude
VERSION: 3.9.8.5 43ms UTC 02:34 PVG 10:34 LAX 19:34 JFK 22:34
Do have faith in what you're doing.
ubao msn snddm index pchome yahoo rakuten mypaper meadowduck bidyahoo youbao zxmzxm asda bnvcg cvbfg dfscv mmhjk xxddc yybgb zznbn ccubao uaitu acv GXCV ET GDG YH FG BCVB FJFH CBRE CBC GDG ET54 WRWR RWER WREW WRWER RWER SDG EW SF DSFSF fbbs ubao fhd dfg ewr dg df ewwr ewwr et ruyut utut dfg fgd gdfgt etg dfgt dfgd ert4 gd fgg wr 235 wer3 we vsdf sdf gdf ert xcv sdf rwer hfd dfg cvb rwf afb dfh jgh bmn lgh rty gfds cxv xcv xcs vdas fdf fgd cv sdf tert sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf shasha9178 shasha9178 shasha9178 shasha9178 shasha9178 liflif2 liflif2 liflif2 liflif2 liflif2 liblib3 liblib3 liblib3 liblib3 liblib3 zhazha444 zhazha444 zhazha444 zhazha444 zhazha444 dende5 dende denden denden2 denden21 fenfen9 fenf619 fen619 fenfe9 fe619 sdf sdf sdf sdf sdf zhazh90 zhazh0 zhaa50 zha90 zh590 zho zhoz zhozh zhozho zhozho2 lislis lls95 lili95 lils5 liss9 sdf0ty987 sdft876 sdft9876 sdf09876 sd0t9876 sdf0ty98 sdf0976 sdf0ty986 sdf0ty96 sdf0t76 sdf0876 df0ty98 sf0t876 sd0ty76 sdy76 sdf76 sdf0t76 sdf0ty9 sdf0ty98 sdf0ty987 sdf0ty98 sdf6676 sdf876 sd876 sd876 sdf6 sdf6 sdf9876 sdf0t sdf06 sdf0ty9776 sdf0ty9776 sdf0ty76 sdf8876 sdf0t sd6 sdf06 s688876 sd688 sdf86