I wanted to mention in this context, because I'm emphasizing how banks help solve the adverse selection and moral hazard problem -I wanted to mention briefly here also the rating agencies, which fulfill some of these functions.

我早就想在这段内容里讲讲这事了,因为我一直强调,银行是如何帮助解决逆向选择,以及道德风险问题的...,我还一直想在这里简要的提下,本应履行这些职能的那些信用评级机构

耶鲁公开课 - 金融市场课程节选