Credit rating, also known as credit rating, is a social intermediary service that provides credit information for the society or provides decision-making reference for the unit itself. Originally produced in the United States in the early 20th century. 1902, John moody, the founder of moody's company, began to rate the railway bonds issued at that time. Later, it was extended to various financial products and various evaluation objects. Because the objects and requirements of credit rating are different, the contents and methods of credit rating are also very different. We study the classification of credit in order to explore different credit rating standards and methods for different credit rating projects.

Credit rating method

There are usually three kinds of self-appraisal, mass appraisal and expert appraisal. If it is rated by an independent professional evaluation agency, it is generally appraised by experts. If the rating is organized by government agencies in a unified way, the method of combining self-assessment, mass evaluation and expert evaluation can also be adopted. As for the specific methods of rating, quantitative analysis or qualitative analysis can be used, or both can be combined. Among the quantitative analysis methods, there are many methods, such as efficacy coefficient method, subsection scoring method, cascade decreasing method and so on.