搜索结果: 1-3 共查到“管理学 and composition”相关记录3条 . 查询时间(0.062 秒)
The Variance Composition of Firm Growth Rates
variance components growth competitive advantage
2009/9/25
Firms exhibit a wide variability in growth rates. This can be seen as another manifestation of the fact that firms are different from one another in several respects. This study investigated this vari...
Income Portfolios in Rural Nigeria: Composition and Determinants
farm income income activities off-farm income Nigeria rural household
2009/6/10
This study uses household`s survey data to analyze income portfolios and determinants in rural Nigeria. The results indicate that, while farming accounts for half of total household`s income, the othe...
Improving both domain and total area estimation by composition
regional statistics small areas mean square error direct and composite estimators
2009/2/23
In this article we propose small area estimators for both the small and large area parameters. When the objective is to estimate parameters at both levels, optimality is achieved by a sample design th...