邊際界限投資 的英文怎麼說

中文拼音 [biānjièxiàntóu]
邊際界限投資 英文
marginal investment
  • : 邊Ⅰ名詞1 (幾何圖形上夾成角的直線或圍成多邊形的線段) side; section 2 (邊緣) edge; margin; oute...
  • : Ⅰ名詞1 (靠邊的或分界的地方) border; boundary; edge 2 (里邊; 中間) inside 3 (彼此之間) betwe...
  • : 名詞1 (相交的地方; 劃分的界限) boundary 2 (一定的范圍) scope; extent 3 (按職業、工作或性別等...
  • : Ⅰ名詞(指定的范圍; 限度) limit; bounds Ⅱ動詞(指定范圍, 不許超過) set a limit; limit; restrict
  • : Ⅰ名詞1 (錢財; 費用) money; wealth; expenses 2 (資質) intelligence; endowment 3 (資格) quali...
  • 邊際 : (邊界; 邊緣) limit; bound; boundary
  • 界限 : 1 (分界) demarcation line; dividing line; limits; bounds; boundary; range; limitation 2 (限度...
  1. Following, making development study from the three directions : the first one is how to reduce calculation when to use markowitz model. this text has improved the efficient frontier of markowitz model utilizing free risk assets, and reduced calculation about revenue rates " co - variance matrix utilizing single or multiple factors, and so on. the second one is to add thinking factors about, such as transaction fee, fund limitation, lowest transaction unit ' s limitation, risk measures and exchange rate risk of international portfolio securities, so as to make markowitz model closer to our country ' s practice

    接著,分三今方向對markowitz模型進行了拓展研究:第一個方向是運用markowitz模型時如何減少計算量,本文利用無風險產來改進markowitz模型的有效,利用單因子或多因子模型來減少收益率協方差的計算量等等;第二個方向是增加考慮因素,諸如交易費用、制、最小交易單位制,風險測度和國組合證券的匯率風險,使markowitz模型更貼近我國的實;第三個方向是對markowitz模型進行動態拓展研究,提出了將證券收益率看成是隨機序列時的決策模型,深入研究了m ? v有效產品種數增加而發生的漂移,並用解析方法和幾何圖形描述了漂移的軌跡和方向。
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