In this episode of Money Lessons, Andy explores the failures of credit ratings through historical examples, including the Penn Central bankruptcy, the Enron collapse, and the 2008 financial crisis. He discusses the inherent conflicts in the credit rating system, particularly the issuer-pay model, and the implications of these failures for investors. The episode concludes with lessons learned and the importance of using credit ratings as one of many tools in risk assessment.

In this episode of Money Lessons, Andy discusses the concept of yield on bonds, explaining their significance in evaluating investment returns. He breaks down various yield measures, including nominal yield, current yield, and yield to maturity, highlighting their differences and importance in bond investment. The episode also covers callable bonds and the hierarchy of yield measures, providing listeners with a comprehensive understanding of how to compare bonds effectively.