In this episode, I had a conversation with Philippe van der Beck, who wrote a fascinating paper (work in progress) titled "Flow-driven ESG returns". The paper highlights that investing $1 in sustainable mutual funds can increase the value of green firms by 40 cents. This raises questions about whether ESG investing really has an impact.

Philippe explains in detail how he arrived at this statement. He cautions that the impact is limited to the stock price, and it is challenging to say how it affects real outcomes. Nevertheless, it is an intriguing deep dive into how markets and prices move, and how sustainable investing may drive prices and behavior more than the standard models in finance would suggest.