论文标题
广义变化系数调解模型
Generalized Varying Coefficient Mediation Models
论文作者
论文摘要
通过分析从经济压力到企业家的因果机制，通过抑郁症的影响，我们开发了两层广义变化的系数调解模型。该模型通过将它们视为该变量的平滑函数，从而捕获了介体的桥接效应。它还通过在第一层引入广义变化系数模型来允许各种响应类型。通过样条膨胀估算了不同的直接和间接效应。探索了估计的直接和间接系数函数的理论特性，包括估计偏见，渐近分布等。模拟研究验证了所提出的估计方法的有限样本性能。基于拟议模型的真实数据分析发现了一些有趣的行为经济现象，即自我效能感会直接和间接地通过沮丧的影响影响经济压力的有害影响，对企业主的退出意图。
Motivated by an analysis of causal mechanism from economic stress to entrepreneurial withdrawals through depressed affect, we develop a two-layer generalized varying coefficient mediation model. This model captures the bridging effects of mediators that may vary with another variable, by treating them as smooth functions of this variable. It also allows various response types by introducing the generalized varying coefficient model in the first layer. The varying direct and indirect effects are estimated through spline expansion. The theoretical properties of the estimated direct and indirect coefficient functions, including estimation biases, asymptotic distributions, and so forth, are explored. Simulation studies validate the finite-sample performance of the proposed estimation method. A real data analysis based on the proposed model discovers some interesting behavioral economic phenomenon, that self-efficacy influences the deleterious impact of economic stress, both directly and indirectly through depressed affect, on business owners' withdrawl intentions.
