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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Our framework assumes that funds' sensitivities to passive assets are constant over time.
One way of relaxing this assumption is to model these coe±cients as linear functions of
state variables, as for example in Ferson and Schadt (1996) and Shanken (1990). In such
a modi¯cation, passive asset returns scaled by the state variables can be viewed as returns
on additional passive assets (dynamic passive strategies), and the approach developed here
could be extended to such a setting. Another approach to dealing with temporal variation
in parameters could employ data on fund holdings. Daniel, Grinblatt, Titman, and Wermers
(1997) and Wermers (2000), for example, use such data in...
Nội dung trích xuất từ tài liệu:
THE CLEAN TECHNOLOGY FUND
