The study looked at how people's love for the environment affects bond prices. They used green bonds to see if investors care about the environment when buying bonds. The results showed that green bonds have slightly lower yields than regular bonds, meaning people are willing to accept slightly lower returns to support environmentally friendly investments. This effect was stronger for financial and low-rated bonds. Overall, investors' environmental preferences have a small impact on bond prices, but it doesn't stop them from investing in green bonds.