A fixed effects model is specified based on theories and the nature analysis 在充分了解理論和我國實踐的基礎上,運用固定效應方法建立我國資本結構模型。
Empirical testing is conducted by using panel data with pooled regression model , fixed effect model and random effect model 通過分析,從全國來看,人均gdp 、市場需求和規模、聚集效應、開放度是影響fdi的主要因素。
Methods using an example to illustrate different statistical models ( fixed effects models and mixed models ) in sas procedures for repeated measures data in clinical trials 方法通過實例說明并比較各種固定效應模型和混合模型的優缺點。
Results there are two important data analysis strategies for comparing the different effects between the two treatment groups : ( 1 ) fixed effects model , such as independent t test , analysis of variance and analysis of covariance ; ( 2 ) linear mixed models 結果臨床試驗研究資料常為重復測量資料,比較各處理組的測量值差別是否有顯著性,可以采用傳統的統計方法如t檢驗、方差分析和協方差分析等;也可以采用混合模型對整個研究過程中所有時點的測量值進行分析。
Part two introduces the theory of panel data . the basic form of panel data is : yi t = it + xi t it + uit , i = 1 , 2 , … , n ; t = 1 , 2 , … , t panel data is used for describing the instance of swatch in a collectivity in some time , and observing every unit in swatch multi - scale . basing on the different hypothesis of ui , panel data has fixed effect model and random effect model , if ui is a unit constant ( corresponding to the dummy variable of 基于分析結果,本文給出了改革我國公司治理結構的若干建議: ( 1 )股權性質方面,培育有效的國家股持股主體; ( 2 )股權結構方面,逐漸調整股權結構,減少第一大股東持股比例,增加除第一大股東以外的大股東的股權集中度; ( 3 )董事會方面,采取奇數型董事會規模,并完善獨立董事的生成機制; ( 4 )激勵制度方面,應加大董事及總經理的持股比例。
The evidence from the regression of multiple and fixed effects model demonstrates that funds ’ abnormal return of last year , depreciation rate , unit net asset and fund manager ’ s working experience have close relationship with fund performance , aomg which , the former three factors have positive relation 通過多元固定影響模型的回歸分析證實,基金上一年度超額收益、折價率、單位凈資產以及基金經理從業經歷與基金績效密切相關。在基金上一年度超額收益越多、折價率越高、單位凈資產越多的情況下,基金經理越有可能采取積極投資策略,選擇更加優化的投資組合,贏得更好的投資組合收益。