Phân tích tư tưởng của nhân dân qua đoạn thơ: Những người vợ nhớ chồng… Những cuộc đời đã hóa sông núi ta trong Đất nước của Nguyễn Khoa Điềm
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Risk and return measures for models of funds are typically statistics such as mean and standard
deviation. A straightforward way to get a commensurable set of measures is to choose only
statistics measured in the same units as the data. Often the literature uses statistics such as
variance, semivariance, skewness and kurtosis not in the same units (Wilkens and Zhu, 2001;
Gregoriou et al., 2005b; Nguyen-Thi-Thanh, 2006). There are several plausible explanations.
First, funds returns are usually expressed as proportions and so it may not be immediately obvious
that the efficiencies are not dimensionless. Second, dea models are often expressed in dual
form (like model (5)–(9)) in...
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German Investment Funds involved in Land Grabbing
