The research on exiting behavior model of customer relationship and identifying mechanism of exit - propensity are key problems in customer relationship restoring theory.
客户关系退出行为模式和退出倾向识别机理是客户关系修复理论的关键研究内容。
Results Under model misspecification conditions, propensity score methods had better robustness than model based methods.
结果当存在模型误定时，倾向指数方法比基于模型的方法具有较好的稳健性。
An alternative would be to estimate a linear model and assume that the marginal propensity to import is constant.
另一个选择是将估计线性模型和假设的边际进口的倾向是不变的。
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