Heckman模型
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Heckman Selection Model 选择模型 ; 备择模型
Heckman two-stage model Heckman两阶段模型
heckman model
赫克曼模型
以上为机器翻译结果，长、整句建议使用 人工翻译 。
Each month, Heckman Global Advisors updates their country allocation model.
FORBES: January All-Country Allocation Strategy
International investors looking for countries to go stock picking in might be able to use the model, devised by Leila Heckman, as a means to over- or underweight a market.
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