multicollinearity effect 中文意思是什麼
multicollinearity effect
解釋
多重共線性效應- multicollinearity : 多共線性
- effect : n 1 結果。2 效能，效果，效力，效應，作用，功效；影響。3 感觸，印象；外觀，現象。4 旨趣，意義。5 ...
- y :
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Strong the relationship of tax and economy, adjust the structure of budgetary expenditure … ) and some points need further research ( e. g. the analysis of tax structure … ) this paper adopt unit root test, cointegration test and ecm model to solve the spurious regression of traditional forecast model. var model has good forecast effect and stepwise regression can solve multicollinearity
本文在繼承前輩研究成果的基礎上力爭有所突破，在研究方法上，針對傳統稅收預測模型存在的某些缺陷，採用單位根檢驗、協整檢驗及ecm模型解決困擾計量經濟學界多時的偽回歸問題; grange因果關系檢驗、 var模型被證明具有較好的預測效果;逐步回歸則有效的克服了多重共線性帶來的問題。 -
First of all, both r & d labor and r & d capital input variables are introduced into the input vector, and a two - level ces production function model is constructed to describe the technology of production. then the firm - level cross - section data of shanghai ’ s main manufacturing industries in 2003 is employed to study the input - output effect of r & d as well as the substitution relationship among input factors. moreover, the thesis also makes a methodological discussion of multicollinearity, and proposes a feasible approach to deal with the problem
首先，在生產函數的投入要素向量中引入r & d投入變量，包括r & d人力投入和r & d資本投入;然後，結合相關的研究經驗和本文的研究目的，構建了相應的二級ces生產函數模型;在此基礎之上，採用2003年上海主要製造業企業的橫截面數據，分行業研究了r & d投入對產出的作用以及r & d投入與非r & d投入之間的替代關系。
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