co nd - m at / 9 70 70 42 4 Ju l 1 99 7 MISSING INFORMATION AND ASSET ALLOCATION
نویسندگان
چکیده
When the available statistical information is imperfect, it is dangerous to follow standard optimisation procedures to construct an optimal portfolio, which usually leads to a strong concentration of the weights on very few assets. We propose a new way, based on generalised entropies, to ensure a minimal degree of diversification.
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تاریخ انتشار 1997