The existing approaches to sparse wealth allocations (1) are limited to low-dimensional setup when the number of assets is less than the sample size; (2) lack theoretical analysis of sparse wealth ...

中文翻译：

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篮子半满：稀疏的投资组合

现有的稀疏财富分配方法（1）仅限于资产数量小于样本量时的低维设置；(2)缺乏对稀疏财富的理论分析……