To study influence factors of customer complaint, binary choice Probit model and binary choice Logit model of customer complaint are built, and two numerical examples are given, respectively.

对顾客抱怨的影响因素进行研究，分别构建了顾客抱怨的二元选择Logit、Probit模型，并给出了两个实例。

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This makes the model unduly dependent on foreign aid, a common complaint of Africans about many Western-inspired development projects.

ECONOMIST: African poverty

It was the complaint of yet another school trying to build a blended-learning model that utilizes multiple providers.

FORBES: Is the Technology 'Ready' for Blended Learning?