四个选项

问题如下：

Peisong Liu is discussing about structural models and reduced-form models in estimating default correlation with Dragon Roaringsky. Which of the following statements is most accurate?

选项：

A.

Structural models tend to take a long time to process

B.

Reduced-form models are more computationally intensive

C.

Reduced-form models allow for very high default correlations

D.

Economic cycle impacts on default correlation trends are best reflected in structural models

解释：

Structural models are computationally intensive (relative to reduced-form models), and, therefore, take a long time to process. However, an advantage to structural models is that they allow for higher default correlations. Economic cycle impacts on default correlation trends are best reflected in reduced-form models.