Solving the Diamond–Mortensen–Pissarides model: A hybrid perturbation approach
提出一种混合摄动方法，结合非线性变量变换，能精确求解商业周期研究中的Diamond-Mortensen-Pissarides模型，计算简单且结果与投影法高度一致。
Projection methods are deemed necessary to accurately solve various variants of the Diamond–Mortensen–Pissarides model used in business cycle research. This paper argues that hybrid perturbation, once combined with a non-linear change of variable, can provide an alternative, producing accurate solutions while retaining most of the simplicity of standard perturbation: Applying the method to the Hagedorn and Manovskii (2008) model, it delivers high accuracy and nearly identical business cycle moments as recent projection approaches.